[Pkg-javascript-commits] [leaflet-markercluster] 11/18: Tag v1.2.0

[Jonas Smedegaard]

This is an automated email from the git hooks/post-receive script.

js pushed a commit to annotated tag debian/1.2.0_dfsg-1
in repository leaflet-markercluster.

commit 7426bc95a07657c08003754488306fba39dee56b
Author: dave <danzel at localhost.geek.nz>
Date:   Mon Nov 6 10:46:51 2017 +1300

    Tag v1.2.0
---
 dist/leaflet.markercluster-src.js | 2677 +++++++++++++++++++++++++++++++++++++
 dist/leaflet.markercluster.js     |    7 +
 2 files changed, 2684 insertions(+)

diff --git a/dist/leaflet.markercluster-src.js b/dist/leaflet.markercluster-src.js
new file mode 100644
index 0000000..c725854
--- /dev/null
+++ b/dist/leaflet.markercluster-src.js
@@ -0,0 +1,2677 @@
+/*
+ Leaflet.markercluster, Provides Beautiful Animated Marker Clustering functionality for Leaflet, a JS library for interactive maps.
+ https://github.com/Leaflet/Leaflet.markercluster
+ (c) 2012-2017, Dave Leaver
+*/
+(function (window, document, undefined) {/*
+ * L.MarkerClusterGroup extends L.FeatureGroup by clustering the markers contained within
+ */
+
+L.MarkerClusterGroup = L.FeatureGroup.extend({
+
+	options: {
+		maxClusterRadius: 80, //A cluster will cover at most this many pixels from its center
+		iconCreateFunction: null,
+		clusterPane: L.Marker.prototype.options.pane,
+
+		spiderfyOnMaxZoom: true,
+		showCoverageOnHover: true,
+		zoomToBoundsOnClick: true,
+		singleMarkerMode: false,
+
+		disableClusteringAtZoom: null,
+
+		// Setting this to false prevents the removal of any clusters outside of the viewpoint, which
+		// is the default behaviour for performance reasons.
+		removeOutsideVisibleBounds: true,
+
+		// Set to false to disable all animations (zoom and spiderfy).
+		// If false, option animateAddingMarkers below has no effect.
+		// If L.DomUtil.TRANSITION is falsy, this option has no effect.
+		animate: true,
+
+		//Whether to animate adding markers after adding the MarkerClusterGroup to the map
+		// If you are adding individual markers set to true, if adding bulk markers leave false for massive performance gains.
+		animateAddingMarkers: false,
+
+		//Increase to increase the distance away that spiderfied markers appear from the center
+		spiderfyDistanceMultiplier: 1,
+
+		// Make it possible to specify a polyline options on a spider leg
+		spiderLegPolylineOptions: { weight: 1.5, color: '#222', opacity: 0.5 },
+
+		// When bulk adding layers, adds markers in chunks. Means addLayers may not add all the layers in the call, others will be loaded during setTimeouts
+		chunkedLoading: false,
+		chunkInterval: 200, // process markers for a maximum of ~ n milliseconds (then trigger the chunkProgress callback)
+		chunkDelay: 50, // at the end of each interval, give n milliseconds back to system/browser
+		chunkProgress: null, // progress callback: function(processed, total, elapsed) (e.g. for a progress indicator)
+
+		//Options to pass to the L.Polygon constructor
+		polygonOptions: {}
+	},
+
+	initialize: function (options) {
+		L.Util.setOptions(this, options);
+		if (!this.options.iconCreateFunction) {
+			this.options.iconCreateFunction = this._defaultIconCreateFunction;
+		}
+
+		this._featureGroup = L.featureGroup();
+		this._featureGroup.addEventParent(this);
+
+		this._nonPointGroup = L.featureGroup();
+		this._nonPointGroup.addEventParent(this);
+
+		this._inZoomAnimation = 0;
+		this._needsClustering = [];
+		this._needsRemoving = []; //Markers removed while we aren't on the map need to be kept track of
+		//The bounds of the currently shown area (from _getExpandedVisibleBounds) Updated on zoom/move
+		this._currentShownBounds = null;
+
+		this._queue = [];
+
+		this._childMarkerEventHandlers = {
+			'dragstart': this._childMarkerDragStart,
+			'move': this._childMarkerMoved,
+			'dragend': this._childMarkerDragEnd,
+		};
+
+		// Hook the appropriate animation methods.
+		var animate = L.DomUtil.TRANSITION && this.options.animate;
+		L.extend(this, animate ? this._withAnimation : this._noAnimation);
+		// Remember which MarkerCluster class to instantiate (animated or not).
+		this._markerCluster = animate ? L.MarkerCluster : L.MarkerClusterNonAnimated;
+	},
+
+	addLayer: function (layer) {
+
+		if (layer instanceof L.LayerGroup) {
+			return this.addLayers([layer]);
+		}
+
+		//Don't cluster non point data
+		if (!layer.getLatLng) {
+			this._nonPointGroup.addLayer(layer);
+			this.fire('layeradd', { layer: layer });
+			return this;
+		}
+
+		if (!this._map) {
+			this._needsClustering.push(layer);
+			this.fire('layeradd', { layer: layer });
+			return this;
+		}
+
+		if (this.hasLayer(layer)) {
+			return this;
+		}
+
+
+		//If we have already clustered we'll need to add this one to a cluster
+
+		if (this._unspiderfy) {
+			this._unspiderfy();
+		}
+
+		this._addLayer(layer, this._maxZoom);
+		this.fire('layeradd', { layer: layer });
+
+		// Refresh bounds and weighted positions.
+		this._topClusterLevel._recalculateBounds();
+
+		this._refreshClustersIcons();
+
+		//Work out what is visible
+		var visibleLayer = layer,
+		    currentZoom = this._zoom;
+		if (layer.__parent) {
+			while (visibleLayer.__parent._zoom >= currentZoom) {
+				visibleLayer = visibleLayer.__parent;
+			}
+		}
+
+		if (this._currentShownBounds.contains(visibleLayer.getLatLng())) {
+			if (this.options.animateAddingMarkers) {
+				this._animationAddLayer(layer, visibleLayer);
+			} else {
+				this._animationAddLayerNonAnimated(layer, visibleLayer);
+			}
+		}
+		return this;
+	},
+
+	removeLayer: function (layer) {
+
+		if (layer instanceof L.LayerGroup) {
+			return this.removeLayers([layer]);
+		}
+
+		//Non point layers
+		if (!layer.getLatLng) {
+			this._nonPointGroup.removeLayer(layer);
+			this.fire('layerremove', { layer: layer });
+			return this;
+		}
+
+		if (!this._map) {
+			if (!this._arraySplice(this._needsClustering, layer) && this.hasLayer(layer)) {
+				this._needsRemoving.push({ layer: layer, latlng: layer._latlng });
+			}
+			this.fire('layerremove', { layer: layer });
+			return this;
+		}
+
+		if (!layer.__parent) {
+			return this;
+		}
+
+		if (this._unspiderfy) {
+			this._unspiderfy();
+			this._unspiderfyLayer(layer);
+		}
+
+		//Remove the marker from clusters
+		this._removeLayer(layer, true);
+		this.fire('layerremove', { layer: layer });
+
+		// Refresh bounds and weighted positions.
+		this._topClusterLevel._recalculateBounds();
+
+		this._refreshClustersIcons();
+
+		layer.off(this._childMarkerEventHandlers, this);
+
+		if (this._featureGroup.hasLayer(layer)) {
+			this._featureGroup.removeLayer(layer);
+			if (layer.clusterShow) {
+				layer.clusterShow();
+			}
+		}
+
+		return this;
+	},
+
+	//Takes an array of markers and adds them in bulk
+	addLayers: function (layersArray, skipLayerAddEvent) {
+		if (!L.Util.isArray(layersArray)) {
+			return this.addLayer(layersArray);
+		}
+
+		var fg = this._featureGroup,
+		    npg = this._nonPointGroup,
+		    chunked = this.options.chunkedLoading,
+		    chunkInterval = this.options.chunkInterval,
+		    chunkProgress = this.options.chunkProgress,
+		    l = layersArray.length,
+		    offset = 0,
+		    originalArray = true,
+		    m;
+
+		if (this._map) {
+			var started = (new Date()).getTime();
+			var process = L.bind(function () {
+				var start = (new Date()).getTime();
+				for (; offset < l; offset++) {
+					if (chunked && offset % 200 === 0) {
+						// every couple hundred markers, instrument the time elapsed since processing started:
+						var elapsed = (new Date()).getTime() - start;
+						if (elapsed > chunkInterval) {
+							break; // been working too hard, time to take a break :-)
+						}
+					}
+
+					m = layersArray[offset];
+
+					// Group of layers, append children to layersArray and skip.
+					// Side effects:
+					// - Total increases, so chunkProgress ratio jumps backward.
+					// - Groups are not included in this group, only their non-group child layers (hasLayer).
+					// Changing array length while looping does not affect performance in current browsers:
+					// http://jsperf.com/for-loop-changing-length/6
+					if (m instanceof L.LayerGroup) {
+						if (originalArray) {
+							layersArray = layersArray.slice();
+							originalArray = false;
+						}
+						this._extractNonGroupLayers(m, layersArray);
+						l = layersArray.length;
+						continue;
+					}
+
+					//Not point data, can't be clustered
+					if (!m.getLatLng) {
+						npg.addLayer(m);
+						if (!skipLayerAddEvent) {
+							this.fire('layeradd', { layer: m });
+						}
+						continue;
+					}
+
+					if (this.hasLayer(m)) {
+						continue;
+					}
+
+					this._addLayer(m, this._maxZoom);
+					if (!skipLayerAddEvent) {
+						this.fire('layeradd', { layer: m });
+					}
+
+					//If we just made a cluster of size 2 then we need to remove the other marker from the map (if it is) or we never will
+					if (m.__parent) {
+						if (m.__parent.getChildCount() === 2) {
+							var markers = m.__parent.getAllChildMarkers(),
+							    otherMarker = markers[0] === m ? markers[1] : markers[0];
+							fg.removeLayer(otherMarker);
+						}
+					}
+				}
+
+				if (chunkProgress) {
+					// report progress and time elapsed:
+					chunkProgress(offset, l, (new Date()).getTime() - started);
+				}
+
+				// Completed processing all markers.
+				if (offset === l) {
+
+					// Refresh bounds and weighted positions.
+					this._topClusterLevel._recalculateBounds();
+
+					this._refreshClustersIcons();
+
+					this._topClusterLevel._recursivelyAddChildrenToMap(null, this._zoom, this._currentShownBounds);
+				} else {
+					setTimeout(process, this.options.chunkDelay);
+				}
+			}, this);
+
+			process();
+		} else {
+			var needsClustering = this._needsClustering;
+
+			for (; offset < l; offset++) {
+				m = layersArray[offset];
+
+				// Group of layers, append children to layersArray and skip.
+				if (m instanceof L.LayerGroup) {
+					if (originalArray) {
+						layersArray = layersArray.slice();
+						originalArray = false;
+					}
+					this._extractNonGroupLayers(m, layersArray);
+					l = layersArray.length;
+					continue;
+				}
+
+				//Not point data, can't be clustered
+				if (!m.getLatLng) {
+					npg.addLayer(m);
+					continue;
+				}
+
+				if (this.hasLayer(m)) {
+					continue;
+				}
+
+				needsClustering.push(m);
+			}
+		}
+		return this;
+	},
+
+	//Takes an array of markers and removes them in bulk
+	removeLayers: function (layersArray) {
+		var i, m,
+		    l = layersArray.length,
+		    fg = this._featureGroup,
+		    npg = this._nonPointGroup,
+		    originalArray = true;
+
+		if (!this._map) {
+			for (i = 0; i < l; i++) {
+				m = layersArray[i];
+
+				// Group of layers, append children to layersArray and skip.
+				if (m instanceof L.LayerGroup) {
+					if (originalArray) {
+						layersArray = layersArray.slice();
+						originalArray = false;
+					}
+					this._extractNonGroupLayers(m, layersArray);
+					l = layersArray.length;
+					continue;
+				}
+
+				this._arraySplice(this._needsClustering, m);
+				npg.removeLayer(m);
+				if (this.hasLayer(m)) {
+					this._needsRemoving.push({ layer: m, latlng: m._latlng });
+				}
+				this.fire('layerremove', { layer: m });
+			}
+			return this;
+		}
+
+		if (this._unspiderfy) {
+			this._unspiderfy();
+
+			// Work on a copy of the array, so that next loop is not affected.
+			var layersArray2 = layersArray.slice(),
+			    l2 = l;
+			for (i = 0; i < l2; i++) {
+				m = layersArray2[i];
+
+				// Group of layers, append children to layersArray and skip.
+				if (m instanceof L.LayerGroup) {
+					this._extractNonGroupLayers(m, layersArray2);
+					l2 = layersArray2.length;
+					continue;
+				}
+
+				this._unspiderfyLayer(m);
+			}
+		}
+
+		for (i = 0; i < l; i++) {
+			m = layersArray[i];
+
+			// Group of layers, append children to layersArray and skip.
+			if (m instanceof L.LayerGroup) {
+				if (originalArray) {
+					layersArray = layersArray.slice();
+					originalArray = false;
+				}
+				this._extractNonGroupLayers(m, layersArray);
+				l = layersArray.length;
+				continue;
+			}
+
+			if (!m.__parent) {
+				npg.removeLayer(m);
+				this.fire('layerremove', { layer: m });
+				continue;
+			}
+
+			this._removeLayer(m, true, true);
+			this.fire('layerremove', { layer: m });
+
+			if (fg.hasLayer(m)) {
+				fg.removeLayer(m);
+				if (m.clusterShow) {
+					m.clusterShow();
+				}
+			}
+		}
+
+		// Refresh bounds and weighted positions.
+		this._topClusterLevel._recalculateBounds();
+
+		this._refreshClustersIcons();
+
+		//Fix up the clusters and markers on the map
+		this._topClusterLevel._recursivelyAddChildrenToMap(null, this._zoom, this._currentShownBounds);
+
+		return this;
+	},
+
+	//Removes all layers from the MarkerClusterGroup
+	clearLayers: function () {
+		//Need our own special implementation as the LayerGroup one doesn't work for us
+
+		//If we aren't on the map (yet), blow away the markers we know of
+		if (!this._map) {
+			this._needsClustering = [];
+			delete this._gridClusters;
+			delete this._gridUnclustered;
+		}
+
+		if (this._noanimationUnspiderfy) {
+			this._noanimationUnspiderfy();
+		}
+
+		//Remove all the visible layers
+		this._featureGroup.clearLayers();
+		this._nonPointGroup.clearLayers();
+
+		this.eachLayer(function (marker) {
+			marker.off(this._childMarkerEventHandlers, this);
+			delete marker.__parent;
+		}, this);
+
+		if (this._map) {
+			//Reset _topClusterLevel and the DistanceGrids
+			this._generateInitialClusters();
+		}
+
+		return this;
+	},
+
+	//Override FeatureGroup.getBounds as it doesn't work
+	getBounds: function () {
+		var bounds = new L.LatLngBounds();
+
+		if (this._topClusterLevel) {
+			bounds.extend(this._topClusterLevel._bounds);
+		}
+
+		for (var i = this._needsClustering.length - 1; i >= 0; i--) {
+			bounds.extend(this._needsClustering[i].getLatLng());
+		}
+
+		bounds.extend(this._nonPointGroup.getBounds());
+
+		return bounds;
+	},
+
+	//Overrides LayerGroup.eachLayer
+	eachLayer: function (method, context) {
+		var markers = this._needsClustering.slice(),
+			needsRemoving = this._needsRemoving,
+			thisNeedsRemoving, i, j;
+
+		if (this._topClusterLevel) {
+			this._topClusterLevel.getAllChildMarkers(markers);
+		}
+
+		for (i = markers.length - 1; i >= 0; i--) {
+			thisNeedsRemoving = true;
+
+			for (j = needsRemoving.length - 1; j >= 0; j--) {
+				if (needsRemoving[j].layer === markers[i]) {
+					thisNeedsRemoving = false;
+					break;
+				}
+			}
+
+			if (thisNeedsRemoving) {
+				method.call(context, markers[i]);
+			}
+		}
+
+		this._nonPointGroup.eachLayer(method, context);
+	},
+
+	//Overrides LayerGroup.getLayers
+	getLayers: function () {
+		var layers = [];
+		this.eachLayer(function (l) {
+			layers.push(l);
+		});
+		return layers;
+	},
+
+	//Overrides LayerGroup.getLayer, WARNING: Really bad performance
+	getLayer: function (id) {
+		var result = null;
+		
+		id = parseInt(id, 10);
+
+		this.eachLayer(function (l) {
+			if (L.stamp(l) === id) {
+				result = l;
+			}
+		});
+
+		return result;
+	},
+
+	//Returns true if the given layer is in this MarkerClusterGroup
+	hasLayer: function (layer) {
+		if (!layer) {
+			return false;
+		}
+
+		var i, anArray = this._needsClustering;
+
+		for (i = anArray.length - 1; i >= 0; i--) {
+			if (anArray[i] === layer) {
+				return true;
+			}
+		}
+
+		anArray = this._needsRemoving;
+		for (i = anArray.length - 1; i >= 0; i--) {
+			if (anArray[i].layer === layer) {
+				return false;
+			}
+		}
+
+		return !!(layer.__parent && layer.__parent._group === this) || this._nonPointGroup.hasLayer(layer);
+	},
+
+	//Zoom down to show the given layer (spiderfying if necessary) then calls the callback
+	zoomToShowLayer: function (layer, callback) {
+
+		if (typeof callback !== 'function') {
+			callback = function () {};
+		}
+
+		var showMarker = function () {
+			if ((layer._icon || layer.__parent._icon) && !this._inZoomAnimation) {
+				this._map.off('moveend', showMarker, this);
+				this.off('animationend', showMarker, this);
+
+				if (layer._icon) {
+					callback();
+				} else if (layer.__parent._icon) {
+					this.once('spiderfied', callback, this);
+					layer.__parent.spiderfy();
+				}
+			}
+		};
+
+		if (layer._icon && this._map.getBounds().contains(layer.getLatLng())) {
+			//Layer is visible ond on screen, immediate return
+			callback();
+		} else if (layer.__parent._zoom < Math.round(this._map._zoom)) {
+			//Layer should be visible at this zoom level. It must not be on screen so just pan over to it
+			this._map.on('moveend', showMarker, this);
+			this._map.panTo(layer.getLatLng());
+		} else {
+			this._map.on('moveend', showMarker, this);
+			this.on('animationend', showMarker, this);
+			layer.__parent.zoomToBounds();
+		}
+	},
+
+	//Overrides FeatureGroup.onAdd
+	onAdd: function (map) {
+		this._map = map;
+		var i, l, layer;
+
+		if (!isFinite(this._map.getMaxZoom())) {
+			throw "Map has no maxZoom specified";
+		}
+
+		this._featureGroup.addTo(map);
+		this._nonPointGroup.addTo(map);
+
+		if (!this._gridClusters) {
+			this._generateInitialClusters();
+		}
+
+		this._maxLat = map.options.crs.projection.MAX_LATITUDE;
+
+		//Restore all the positions as they are in the MCG before removing them
+		for (i = 0, l = this._needsRemoving.length; i < l; i++) {
+			layer = this._needsRemoving[i];
+			layer.newlatlng = layer.layer._latlng;
+			layer.layer._latlng = layer.latlng;
+		}
+		//Remove them, then restore their new positions
+		for (i = 0, l = this._needsRemoving.length; i < l; i++) {
+			layer = this._needsRemoving[i];
+			this._removeLayer(layer.layer, true);
+			layer.layer._latlng = layer.newlatlng;
+		}
+		this._needsRemoving = [];
+
+		//Remember the current zoom level and bounds
+		this._zoom = Math.round(this._map._zoom);
+		this._currentShownBounds = this._getExpandedVisibleBounds();
+
+		this._map.on('zoomend', this._zoomEnd, this);
+		this._map.on('moveend', this._moveEnd, this);
+
+		if (this._spiderfierOnAdd) { //TODO FIXME: Not sure how to have spiderfier add something on here nicely
+			this._spiderfierOnAdd();
+		}
+
+		this._bindEvents();
+
+		//Actually add our markers to the map:
+		l = this._needsClustering;
+		this._needsClustering = [];
+		this.addLayers(l, true);
+	},
+
+	//Overrides FeatureGroup.onRemove
+	onRemove: function (map) {
+		map.off('zoomend', this._zoomEnd, this);
+		map.off('moveend', this._moveEnd, this);
+
+		this._unbindEvents();
+
+		//In case we are in a cluster animation
+		this._map._mapPane.className = this._map._mapPane.className.replace(' leaflet-cluster-anim', '');
+
+		if (this._spiderfierOnRemove) { //TODO FIXME: Not sure how to have spiderfier add something on here nicely
+			this._spiderfierOnRemove();
+		}
+
+		delete this._maxLat;
+
+		//Clean up all the layers we added to the map
+		this._hideCoverage();
+		this._featureGroup.remove();
+		this._nonPointGroup.remove();
+
+		this._featureGroup.clearLayers();
+
+		this._map = null;
+	},
+
+	getVisibleParent: function (marker) {
+		var vMarker = marker;
+		while (vMarker && !vMarker._icon) {
+			vMarker = vMarker.__parent;
+		}
+		return vMarker || null;
+	},
+
+	//Remove the given object from the given array
+	_arraySplice: function (anArray, obj) {
+		for (var i = anArray.length - 1; i >= 0; i--) {
+			if (anArray[i] === obj) {
+				anArray.splice(i, 1);
+				return true;
+			}
+		}
+	},
+
+	/**
+	 * Removes a marker from all _gridUnclustered zoom levels, starting at the supplied zoom.
+	 * @param marker to be removed from _gridUnclustered.
+	 * @param z integer bottom start zoom level (included)
+	 * @private
+	 */
+	_removeFromGridUnclustered: function (marker, z) {
+		var map = this._map,
+		    gridUnclustered = this._gridUnclustered,
+			minZoom = Math.floor(this._map.getMinZoom());
+
+		for (; z >= minZoom; z--) {
+			if (!gridUnclustered[z].removeObject(marker, map.project(marker.getLatLng(), z))) {
+				break;
+			}
+		}
+	},
+
+	_childMarkerDragStart: function (e) {
+		e.target.__dragStart = e.target._latlng;
+	},
+
+	_childMarkerMoved: function (e) {
+		if (!this._ignoreMove && !e.target.__dragStart) {
+			var isPopupOpen = e.target._popup && e.target._popup.isOpen();
+
+			this._moveChild(e.target, e.oldLatLng, e.latlng);
+
+			if (isPopupOpen) {
+				e.target.openPopup();
+			}
+		}
+	},
+
+	_moveChild: function (layer, from, to) {
+		layer._latlng = from;
+		this.removeLayer(layer);
+
+		layer._latlng = to;
+		this.addLayer(layer);
+	},
+
+	_childMarkerDragEnd: function (e) {
+		if (e.target.__dragStart) {
+			this._moveChild(e.target, e.target.__dragStart, e.target._latlng);
+		}
+		delete e.target.__dragStart;
+	},
+	
+
+	//Internal function for removing a marker from everything.
+	//dontUpdateMap: set to true if you will handle updating the map manually (for bulk functions)
+	_removeLayer: function (marker, removeFromDistanceGrid, dontUpdateMap) {
+		var gridClusters = this._gridClusters,
+			gridUnclustered = this._gridUnclustered,
+			fg = this._featureGroup,
+			map = this._map,
+			minZoom = Math.floor(this._map.getMinZoom());
+
+		//Remove the marker from distance clusters it might be in
+		if (removeFromDistanceGrid) {
+			this._removeFromGridUnclustered(marker, this._maxZoom);
+		}
+
+		//Work our way up the clusters removing them as we go if required
+		var cluster = marker.__parent,
+			markers = cluster._markers,
+			otherMarker;
+
+		//Remove the marker from the immediate parents marker list
+		this._arraySplice(markers, marker);
+
+		while (cluster) {
+			cluster._childCount--;
+			cluster._boundsNeedUpdate = true;
+
+			if (cluster._zoom < minZoom) {
+				//Top level, do nothing
+				break;
+			} else if (removeFromDistanceGrid && cluster._childCount <= 1) { //Cluster no longer required
+				//We need to push the other marker up to the parent
+				otherMarker = cluster._markers[0] === marker ? cluster._markers[1] : cluster._markers[0];
+
+				//Update distance grid
+				gridClusters[cluster._zoom].removeObject(cluster, map.project(cluster._cLatLng, cluster._zoom));
+				gridUnclustered[cluster._zoom].addObject(otherMarker, map.project(otherMarker.getLatLng(), cluster._zoom));
+
+				//Move otherMarker up to parent
+				this._arraySplice(cluster.__parent._childClusters, cluster);
+				cluster.__parent._markers.push(otherMarker);
+				otherMarker.__parent = cluster.__parent;
+
+				if (cluster._icon) {
+					//Cluster is currently on the map, need to put the marker on the map instead
+					fg.removeLayer(cluster);
+					if (!dontUpdateMap) {
+						fg.addLayer(otherMarker);
+					}
+				}
+			} else {
+				cluster._iconNeedsUpdate = true;
+			}
+
+			cluster = cluster.__parent;
+		}
+
+		delete marker.__parent;
+	},
+
+	_isOrIsParent: function (el, oel) {
+		while (oel) {
+			if (el === oel) {
+				return true;
+			}
+			oel = oel.parentNode;
+		}
+		return false;
+	},
+
+	//Override L.Evented.fire
+	fire: function (type, data, propagate) {
+		if (data && data.layer instanceof L.MarkerCluster) {
+			//Prevent multiple clustermouseover/off events if the icon is made up of stacked divs (Doesn't work in ie <= 8, no relatedTarget)
+			if (data.originalEvent && this._isOrIsParent(data.layer._icon, data.originalEvent.relatedTarget)) {
+				return;
+			}
+			type = 'cluster' + type;
+		}
+
+		L.FeatureGroup.prototype.fire.call(this, type, data, propagate);
+	},
+
+	//Override L.Evented.listens
+	listens: function (type, propagate) {
+		return L.FeatureGroup.prototype.listens.call(this, type, propagate) || L.FeatureGroup.prototype.listens.call(this, 'cluster' + type, propagate);
+	},
+
+	//Default functionality
+	_defaultIconCreateFunction: function (cluster) {
+		var childCount = cluster.getChildCount();
+
+		var c = ' marker-cluster-';
+		if (childCount < 10) {
+			c += 'small';
+		} else if (childCount < 100) {
+			c += 'medium';
+		} else {
+			c += 'large';
+		}
+
+		return new L.DivIcon({ html: '<div><span>' + childCount + '</span></div>', className: 'marker-cluster' + c, iconSize: new L.Point(40, 40) });
+	},
+
+	_bindEvents: function () {
+		var map = this._map,
+		    spiderfyOnMaxZoom = this.options.spiderfyOnMaxZoom,
+		    showCoverageOnHover = this.options.showCoverageOnHover,
+		    zoomToBoundsOnClick = this.options.zoomToBoundsOnClick;
+
+		//Zoom on cluster click or spiderfy if we are at the lowest level
+		if (spiderfyOnMaxZoom || zoomToBoundsOnClick) {
+			this.on('clusterclick', this._zoomOrSpiderfy, this);
+		}
+
+		//Show convex hull (boundary) polygon on mouse over
+		if (showCoverageOnHover) {
+			this.on('clustermouseover', this._showCoverage, this);
+			this.on('clustermouseout', this._hideCoverage, this);
+			map.on('zoomend', this._hideCoverage, this);
+		}
+	},
+
+	_zoomOrSpiderfy: function (e) {
+		var cluster = e.layer,
+		    bottomCluster = cluster;
+
+		while (bottomCluster._childClusters.length === 1) {
+			bottomCluster = bottomCluster._childClusters[0];
+		}
+
+		if (bottomCluster._zoom === this._maxZoom &&
+			bottomCluster._childCount === cluster._childCount &&
+			this.options.spiderfyOnMaxZoom) {
+
+			// All child markers are contained in a single cluster from this._maxZoom to this cluster.
+			cluster.spiderfy();
+		} else if (this.options.zoomToBoundsOnClick) {
+			cluster.zoomToBounds();
+		}
+
+		// Focus the map again for keyboard users.
+		if (e.originalEvent && e.originalEvent.keyCode === 13) {
+			this._map._container.focus();
+		}
+	},
+
+	_showCoverage: function (e) {
+		var map = this._map;
+		if (this._inZoomAnimation) {
+			return;
+		}
+		if (this._shownPolygon) {
+			map.removeLayer(this._shownPolygon);
+		}
+		if (e.layer.getChildCount() > 2 && e.layer !== this._spiderfied) {
+			this._shownPolygon = new L.Polygon(e.layer.getConvexHull(), this.options.polygonOptions);
+			map.addLayer(this._shownPolygon);
+		}
+	},
+
+	_hideCoverage: function () {
+		if (this._shownPolygon) {
+			this._map.removeLayer(this._shownPolygon);
+			this._shownPolygon = null;
+		}
+	},
+
+	_unbindEvents: function () {
+		var spiderfyOnMaxZoom = this.options.spiderfyOnMaxZoom,
+			showCoverageOnHover = this.options.showCoverageOnHover,
+			zoomToBoundsOnClick = this.options.zoomToBoundsOnClick,
+			map = this._map;
+
+		if (spiderfyOnMaxZoom || zoomToBoundsOnClick) {
+			this.off('clusterclick', this._zoomOrSpiderfy, this);
+		}
+		if (showCoverageOnHover) {
+			this.off('clustermouseover', this._showCoverage, this);
+			this.off('clustermouseout', this._hideCoverage, this);
+			map.off('zoomend', this._hideCoverage, this);
+		}
+	},
+
+	_zoomEnd: function () {
+		if (!this._map) { //May have been removed from the map by a zoomEnd handler
+			return;
+		}
+		this._mergeSplitClusters();
+
+		this._zoom = Math.round(this._map._zoom);
+		this._currentShownBounds = this._getExpandedVisibleBounds();
+	},
+
+	_moveEnd: function () {
+		if (this._inZoomAnimation) {
+			return;
+		}
+
+		var newBounds = this._getExpandedVisibleBounds();
+
+		this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), this._zoom, newBounds);
+		this._topClusterLevel._recursivelyAddChildrenToMap(null, Math.round(this._map._zoom), newBounds);
+
+		this._currentShownBounds = newBounds;
+		return;
+	},
+
+	_generateInitialClusters: function () {
+		var maxZoom = Math.ceil(this._map.getMaxZoom()),
+			minZoom = Math.floor(this._map.getMinZoom()),
+			radius = this.options.maxClusterRadius,
+			radiusFn = radius;
+	
+		//If we just set maxClusterRadius to a single number, we need to create
+		//a simple function to return that number. Otherwise, we just have to
+		//use the function we've passed in.
+		if (typeof radius !== "function") {
+			radiusFn = function () { return radius; };
+		}
+
+		if (this.options.disableClusteringAtZoom !== null) {
+			maxZoom = this.options.disableClusteringAtZoom - 1;
+		}
+		this._maxZoom = maxZoom;
+		this._gridClusters = {};
+		this._gridUnclustered = {};
+	
+		//Set up DistanceGrids for each zoom
+		for (var zoom = maxZoom; zoom >= minZoom; zoom--) {
+			this._gridClusters[zoom] = new L.DistanceGrid(radiusFn(zoom));
+			this._gridUnclustered[zoom] = new L.DistanceGrid(radiusFn(zoom));
+		}
+
+		// Instantiate the appropriate L.MarkerCluster class (animated or not).
+		this._topClusterLevel = new this._markerCluster(this, minZoom - 1);
+	},
+
+	//Zoom: Zoom to start adding at (Pass this._maxZoom to start at the bottom)
+	_addLayer: function (layer, zoom) {
+		var gridClusters = this._gridClusters,
+		    gridUnclustered = this._gridUnclustered,
+			minZoom = Math.floor(this._map.getMinZoom()),
+		    markerPoint, z;
+
+		if (this.options.singleMarkerMode) {
+			this._overrideMarkerIcon(layer);
+		}
+
+		layer.on(this._childMarkerEventHandlers, this);
+
+		//Find the lowest zoom level to slot this one in
+		for (; zoom >= minZoom; zoom--) {
+			markerPoint = this._map.project(layer.getLatLng(), zoom); // calculate pixel position
+
+			//Try find a cluster close by
+			var closest = gridClusters[zoom].getNearObject(markerPoint);
+			if (closest) {
+				closest._addChild(layer);
+				layer.__parent = closest;
+				return;
+			}
+
+			//Try find a marker close by to form a new cluster with
+			closest = gridUnclustered[zoom].getNearObject(markerPoint);
+			if (closest) {
+				var parent = closest.__parent;
+				if (parent) {
+					this._removeLayer(closest, false);
+				}
+
+				//Create new cluster with these 2 in it
+
+				var newCluster = new this._markerCluster(this, zoom, closest, layer);
+				gridClusters[zoom].addObject(newCluster, this._map.project(newCluster._cLatLng, zoom));
+				closest.__parent = newCluster;
+				layer.__parent = newCluster;
+
+				//First create any new intermediate parent clusters that don't exist
+				var lastParent = newCluster;
+				for (z = zoom - 1; z > parent._zoom; z--) {
+					lastParent = new this._markerCluster(this, z, lastParent);
+					gridClusters[z].addObject(lastParent, this._map.project(closest.getLatLng(), z));
+				}
+				parent._addChild(lastParent);
+
+				//Remove closest from this zoom level and any above that it is in, replace with newCluster
+				this._removeFromGridUnclustered(closest, zoom);
+
+				return;
+			}
+
+			//Didn't manage to cluster in at this zoom, record us as a marker here and continue upwards
+			gridUnclustered[zoom].addObject(layer, markerPoint);
+		}
+
+		//Didn't get in anything, add us to the top
+		this._topClusterLevel._addChild(layer);
+		layer.__parent = this._topClusterLevel;
+		return;
+	},
+
+	/**
+	 * Refreshes the icon of all "dirty" visible clusters.
+	 * Non-visible "dirty" clusters will be updated when they are added to the map.
+	 * @private
+	 */
+	_refreshClustersIcons: function () {
+		this._featureGroup.eachLayer(function (c) {
+			if (c instanceof L.MarkerCluster && c._iconNeedsUpdate) {
+				c._updateIcon();
+			}
+		});
+	},
+
+	//Enqueue code to fire after the marker expand/contract has happened
+	_enqueue: function (fn) {
+		this._queue.push(fn);
+		if (!this._queueTimeout) {
+			this._queueTimeout = setTimeout(L.bind(this._processQueue, this), 300);
+		}
+	},
+	_processQueue: function () {
+		for (var i = 0; i < this._queue.length; i++) {
+			this._queue[i].call(this);
+		}
+		this._queue.length = 0;
+		clearTimeout(this._queueTimeout);
+		this._queueTimeout = null;
+	},
+
+	//Merge and split any existing clusters that are too big or small
+	_mergeSplitClusters: function () {
+		var mapZoom = Math.round(this._map._zoom);
+
+		//In case we are starting to split before the animation finished
+		this._processQueue();
+
+		if (this._zoom < mapZoom && this._currentShownBounds.intersects(this._getExpandedVisibleBounds())) { //Zoom in, split
+			this._animationStart();
+			//Remove clusters now off screen
+			this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), this._zoom, this._getExpandedVisibleBounds());
+
+			this._animationZoomIn(this._zoom, mapZoom);
+
+		} else if (this._zoom > mapZoom) { //Zoom out, merge
+			this._animationStart();
+
+			this._animationZoomOut(this._zoom, mapZoom);
+		} else {
+			this._moveEnd();
+		}
+	},
+
+	//Gets the maps visible bounds expanded in each direction by the size of the screen (so the user cannot see an area we do not cover in one pan)
+	_getExpandedVisibleBounds: function () {
+		if (!this.options.removeOutsideVisibleBounds) {
+			return this._mapBoundsInfinite;
+		} else if (L.Browser.mobile) {
+			return this._checkBoundsMaxLat(this._map.getBounds());
+		}
+
+		return this._checkBoundsMaxLat(this._map.getBounds().pad(1)); // Padding expands the bounds by its own dimensions but scaled with the given factor.
+	},
+
+	/**
+	 * Expands the latitude to Infinity (or -Infinity) if the input bounds reach the map projection maximum defined latitude
+	 * (in the case of Web/Spherical Mercator, it is 85.0511287798 / see https://en.wikipedia.org/wiki/Web_Mercator#Formulas).
+	 * Otherwise, the removeOutsideVisibleBounds option will remove markers beyond that limit, whereas the same markers without
+	 * this option (or outside MCG) will have their position floored (ceiled) by the projection and rendered at that limit,
+	 * making the user think that MCG "eats" them and never displays them again.
+	 * @param bounds L.LatLngBounds
+	 * @returns {L.LatLngBounds}
+	 * @private
+	 */
+	_checkBoundsMaxLat: function (bounds) {
+		var maxLat = this._maxLat;
+
+		if (maxLat !== undefined) {
+			if (bounds.getNorth() >= maxLat) {
+				bounds._northEast.lat = Infinity;
+			}
+			if (bounds.getSouth() <= -maxLat) {
+				bounds._southWest.lat = -Infinity;
+			}
+		}
+
+		return bounds;
+	},
+
+	//Shared animation code
+	_animationAddLayerNonAnimated: function (layer, newCluster) {
+		if (newCluster === layer) {
+			this._featureGroup.addLayer(layer);
+		} else if (newCluster._childCount === 2) {
+			newCluster._addToMap();
+
+			var markers = newCluster.getAllChildMarkers();
+			this._featureGroup.removeLayer(markers[0]);
+			this._featureGroup.removeLayer(markers[1]);
+		} else {
+			newCluster._updateIcon();
+		}
+	},
+
+	/**
+	 * Extracts individual (i.e. non-group) layers from a Layer Group.
+	 * @param group to extract layers from.
+	 * @param output {Array} in which to store the extracted layers.
+	 * @returns {*|Array}
+	 * @private
+	 */
+	_extractNonGroupLayers: function (group, output) {
+		var layers = group.getLayers(),
+		    i = 0,
+		    layer;
+
+		output = output || [];
+
+		for (; i < layers.length; i++) {
+			layer = layers[i];
+
+			if (layer instanceof L.LayerGroup) {
+				this._extractNonGroupLayers(layer, output);
+				continue;
+			}
+
+			output.push(layer);
+		}
+
+		return output;
+	},
+
+	/**
+	 * Implements the singleMarkerMode option.
+	 * @param layer Marker to re-style using the Clusters iconCreateFunction.
+	 * @returns {L.Icon} The newly created icon.
+	 * @private
+	 */
+	_overrideMarkerIcon: function (layer) {
+		var icon = layer.options.icon = this.options.iconCreateFunction({
+			getChildCount: function () {
+				return 1;
+			},
+			getAllChildMarkers: function () {
+				return [layer];
+			}
+		});
+
+		return icon;
+	}
+});
+
+// Constant bounds used in case option "removeOutsideVisibleBounds" is set to false.
+L.MarkerClusterGroup.include({
+	_mapBoundsInfinite: new L.LatLngBounds(new L.LatLng(-Infinity, -Infinity), new L.LatLng(Infinity, Infinity))
+});
+
+L.MarkerClusterGroup.include({
+	_noAnimation: {
+		//Non Animated versions of everything
+		_animationStart: function () {
+			//Do nothing...
+		},
+		_animationZoomIn: function (previousZoomLevel, newZoomLevel) {
+			this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), previousZoomLevel);
+			this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
+
+			//We didn't actually animate, but we use this event to mean "clustering animations have finished"
+			this.fire('animationend');
+		},
+		_animationZoomOut: function (previousZoomLevel, newZoomLevel) {
+			this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), previousZoomLevel);
+			this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
+
+			//We didn't actually animate, but we use this event to mean "clustering animations have finished"
+			this.fire('animationend');
+		},
+		_animationAddLayer: function (layer, newCluster) {
+			this._animationAddLayerNonAnimated(layer, newCluster);
+		}
+	},
+
+	_withAnimation: {
+		//Animated versions here
+		_animationStart: function () {
+			this._map._mapPane.className += ' leaflet-cluster-anim';
+			this._inZoomAnimation++;
+		},
+
+		_animationZoomIn: function (previousZoomLevel, newZoomLevel) {
+			var bounds = this._getExpandedVisibleBounds(),
+			    fg = this._featureGroup,
+				minZoom = Math.floor(this._map.getMinZoom()),
+			    i;
+
+			this._ignoreMove = true;
+
+			//Add all children of current clusters to map and remove those clusters from map
+			this._topClusterLevel._recursively(bounds, previousZoomLevel, minZoom, function (c) {
+				var startPos = c._latlng,
+				    markers  = c._markers,
+				    m;
+
+				if (!bounds.contains(startPos)) {
+					startPos = null;
+				}
+
+				if (c._isSingleParent() && previousZoomLevel + 1 === newZoomLevel) { //Immediately add the new child and remove us
+					fg.removeLayer(c);
+					c._recursivelyAddChildrenToMap(null, newZoomLevel, bounds);
+				} else {
+					//Fade out old cluster
+					c.clusterHide();
+					c._recursivelyAddChildrenToMap(startPos, newZoomLevel, bounds);
+				}
+
+				//Remove all markers that aren't visible any more
+				//TODO: Do we actually need to do this on the higher levels too?
+				for (i = markers.length - 1; i >= 0; i--) {
+					m = markers[i];
+					if (!bounds.contains(m._latlng)) {
+						fg.removeLayer(m);
+					}
+				}
+
+			});
+
+			this._forceLayout();
+
+			//Update opacities
+			this._topClusterLevel._recursivelyBecomeVisible(bounds, newZoomLevel);
+			//TODO Maybe? Update markers in _recursivelyBecomeVisible
+			fg.eachLayer(function (n) {
+				if (!(n instanceof L.MarkerCluster) && n._icon) {
+					n.clusterShow();
+				}
+			});
+
+			//update the positions of the just added clusters/markers
+			this._topClusterLevel._recursively(bounds, previousZoomLevel, newZoomLevel, function (c) {
+				c._recursivelyRestoreChildPositions(newZoomLevel);
+			});
+
+			this._ignoreMove = false;
+
+			//Remove the old clusters and close the zoom animation
+			this._enqueue(function () {
+				//update the positions of the just added clusters/markers
+				this._topClusterLevel._recursively(bounds, previousZoomLevel, minZoom, function (c) {
+					fg.removeLayer(c);
+					c.clusterShow();
+				});
+
+				this._animationEnd();
+			});
+		},
+
+		_animationZoomOut: function (previousZoomLevel, newZoomLevel) {
+			this._animationZoomOutSingle(this._topClusterLevel, previousZoomLevel - 1, newZoomLevel);
+
+			//Need to add markers for those that weren't on the map before but are now
+			this._topClusterLevel._recursivelyAddChildrenToMap(null, newZoomLevel, this._getExpandedVisibleBounds());
+			//Remove markers that were on the map before but won't be now
+			this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, Math.floor(this._map.getMinZoom()), previousZoomLevel, this._getExpandedVisibleBounds());
+		},
+
+		_animationAddLayer: function (layer, newCluster) {
+			var me = this,
+			    fg = this._featureGroup;
+
+			fg.addLayer(layer);
+			if (newCluster !== layer) {
+				if (newCluster._childCount > 2) { //Was already a cluster
+
+					newCluster._updateIcon();
+					this._forceLayout();
+					this._animationStart();
+
+					layer._setPos(this._map.latLngToLayerPoint(newCluster.getLatLng()));
+					layer.clusterHide();
+
+					this._enqueue(function () {
+						fg.removeLayer(layer);
+						layer.clusterShow();
+
+						me._animationEnd();
+					});
+
+				} else { //Just became a cluster
+					this._forceLayout();
+
+					me._animationStart();
+					me._animationZoomOutSingle(newCluster, this._map.getMaxZoom(), this._zoom);
+				}
+			}
+		}
+	},
+
+	// Private methods for animated versions.
+	_animationZoomOutSingle: function (cluster, previousZoomLevel, newZoomLevel) {
+		var bounds = this._getExpandedVisibleBounds(),
+			minZoom = Math.floor(this._map.getMinZoom());
+
+		//Animate all of the markers in the clusters to move to their cluster center point
+		cluster._recursivelyAnimateChildrenInAndAddSelfToMap(bounds, minZoom, previousZoomLevel + 1, newZoomLevel);
+
+		var me = this;
+
+		//Update the opacity (If we immediately set it they won't animate)
+		this._forceLayout();
+		cluster._recursivelyBecomeVisible(bounds, newZoomLevel);
+
+		//TODO: Maybe use the transition timing stuff to make this more reliable
+		//When the animations are done, tidy up
+		this._enqueue(function () {
+
+			//This cluster stopped being a cluster before the timeout fired
+			if (cluster._childCount === 1) {
+				var m = cluster._markers[0];
+				//If we were in a cluster animation at the time then the opacity and position of our child could be wrong now, so fix it
+				this._ignoreMove = true;
+				m.setLatLng(m.getLatLng());
+				this._ignoreMove = false;
+				if (m.clusterShow) {
+					m.clusterShow();
+				}
+			} else {
+				cluster._recursively(bounds, newZoomLevel, minZoom, function (c) {
+					c._recursivelyRemoveChildrenFromMap(bounds, minZoom, previousZoomLevel + 1);
+				});
+			}
+			me._animationEnd();
+		});
+	},
+
+	_animationEnd: function () {
+		if (this._map) {
+			this._map._mapPane.className = this._map._mapPane.className.replace(' leaflet-cluster-anim', '');
+		}
+		this._inZoomAnimation--;
+		this.fire('animationend');
+	},
+
+	//Force a browser layout of stuff in the map
+	// Should apply the current opacity and location to all elements so we can update them again for an animation
+	_forceLayout: function () {
+		//In my testing this works, infact offsetWidth of any element seems to work.
+		//Could loop all this._layers and do this for each _icon if it stops working
+
+		L.Util.falseFn(document.body.offsetWidth);
+	}
+});
+
+L.markerClusterGroup = function (options) {
+	return new L.MarkerClusterGroup(options);
+};
+
+
+L.MarkerCluster = L.Marker.extend({
+	initialize: function (group, zoom, a, b) {
+
+		L.Marker.prototype.initialize.call(this, a ? (a._cLatLng || a.getLatLng()) : new L.LatLng(0, 0),
+            { icon: this, pane: group.options.clusterPane });
+
+		this._group = group;
+		this._zoom = zoom;
+
+		this._markers = [];
+		this._childClusters = [];
+		this._childCount = 0;
+		this._iconNeedsUpdate = true;
+		this._boundsNeedUpdate = true;
+
+		this._bounds = new L.LatLngBounds();
+
+		if (a) {
+			this._addChild(a);
+		}
+		if (b) {
+			this._addChild(b);
+		}
+	},
+
+	//Recursively retrieve all child markers of this cluster
+	getAllChildMarkers: function (storageArray) {
+		storageArray = storageArray || [];
+
+		for (var i = this._childClusters.length - 1; i >= 0; i--) {
+			this._childClusters[i].getAllChildMarkers(storageArray);
+		}
+
+		for (var j = this._markers.length - 1; j >= 0; j--) {
+			storageArray.push(this._markers[j]);
+		}
+
+		return storageArray;
+	},
+
+	//Returns the count of how many child markers we have
+	getChildCount: function () {
+		return this._childCount;
+	},
+
+	//Zoom to the minimum of showing all of the child markers, or the extents of this cluster
+	zoomToBounds: function (fitBoundsOptions) {
+		var childClusters = this._childClusters.slice(),
+			map = this._group._map,
+			boundsZoom = map.getBoundsZoom(this._bounds),
+			zoom = this._zoom + 1,
+			mapZoom = map.getZoom(),
+			i;
+
+		//calculate how far we need to zoom down to see all of the markers
+		while (childClusters.length > 0 && boundsZoom > zoom) {
+			zoom++;
+			var newClusters = [];
+			for (i = 0; i < childClusters.length; i++) {
+				newClusters = newClusters.concat(childClusters[i]._childClusters);
+			}
+			childClusters = newClusters;
+		}
+
+		if (boundsZoom > zoom) {
+			this._group._map.setView(this._latlng, zoom);
+		} else if (boundsZoom <= mapZoom) { //If fitBounds wouldn't zoom us down, zoom us down instead
+			this._group._map.setView(this._latlng, mapZoom + 1);
+		} else {
+			this._group._map.fitBounds(this._bounds, fitBoundsOptions);
+		}
+	},
+
+	getBounds: function () {
+		var bounds = new L.LatLngBounds();
+		bounds.extend(this._bounds);
+		return bounds;
+	},
+
+	_updateIcon: function () {
+		this._iconNeedsUpdate = true;
+		if (this._icon) {
+			this.setIcon(this);
+		}
+	},
+
+	//Cludge for Icon, we pretend to be an icon for performance
+	createIcon: function () {
+		if (this._iconNeedsUpdate) {
+			this._iconObj = this._group.options.iconCreateFunction(this);
+			this._iconNeedsUpdate = false;
+		}
+		return this._iconObj.createIcon();
+	},
+	createShadow: function () {
+		return this._iconObj.createShadow();
+	},
+
+
+	_addChild: function (new1, isNotificationFromChild) {
+
+		this._iconNeedsUpdate = true;
+
+		this._boundsNeedUpdate = true;
+		this._setClusterCenter(new1);
+
+		if (new1 instanceof L.MarkerCluster) {
+			if (!isNotificationFromChild) {
+				this._childClusters.push(new1);
+				new1.__parent = this;
+			}
+			this._childCount += new1._childCount;
+		} else {
+			if (!isNotificationFromChild) {
+				this._markers.push(new1);
+			}
+			this._childCount++;
+		}
+
+		if (this.__parent) {
+			this.__parent._addChild(new1, true);
+		}
+	},
+
+	/**
+	 * Makes sure the cluster center is set. If not, uses the child center if it is a cluster, or the marker position.
+	 * @param child L.MarkerCluster|L.Marker that will be used as cluster center if not defined yet.
+	 * @private
+	 */
+	_setClusterCenter: function (child) {
+		if (!this._cLatLng) {
+			// when clustering, take position of the first point as the cluster center
+			this._cLatLng = child._cLatLng || child._latlng;
+		}
+	},
+
+	/**
+	 * Assigns impossible bounding values so that the next extend entirely determines the new bounds.
+	 * This method avoids having to trash the previous L.LatLngBounds object and to create a new one, which is much slower for this class.
+	 * As long as the bounds are not extended, most other methods would probably fail, as they would with bounds initialized but not extended.
+	 * @private
+	 */
+	_resetBounds: function () {
+		var bounds = this._bounds;
+
+		if (bounds._southWest) {
+			bounds._southWest.lat = Infinity;
+			bounds._southWest.lng = Infinity;
+		}
+		if (bounds._northEast) {
+			bounds._northEast.lat = -Infinity;
+			bounds._northEast.lng = -Infinity;
+		}
+	},
+
+	_recalculateBounds: function () {
+		var markers = this._markers,
+		    childClusters = this._childClusters,
+		    latSum = 0,
+		    lngSum = 0,
+		    totalCount = this._childCount,
+		    i, child, childLatLng, childCount;
+
+		// Case where all markers are removed from the map and we are left with just an empty _topClusterLevel.
+		if (totalCount === 0) {
+			return;
+		}
+
+		// Reset rather than creating a new object, for performance.
+		this._resetBounds();
+
+		// Child markers.
+		for (i = 0; i < markers.length; i++) {
+			childLatLng = markers[i]._latlng;
+
+			this._bounds.extend(childLatLng);
+
+			latSum += childLatLng.lat;
+			lngSum += childLatLng.lng;
+		}
+
+		// Child clusters.
+		for (i = 0; i < childClusters.length; i++) {
+			child = childClusters[i];
+
+			// Re-compute child bounds and weighted position first if necessary.
+			if (child._boundsNeedUpdate) {
+				child._recalculateBounds();
+			}
+
+			this._bounds.extend(child._bounds);
+
+			childLatLng = child._wLatLng;
+			childCount = child._childCount;
+
+			latSum += childLatLng.lat * childCount;
+			lngSum += childLatLng.lng * childCount;
+		}
+
+		this._latlng = this._wLatLng = new L.LatLng(latSum / totalCount, lngSum / totalCount);
+
+		// Reset dirty flag.
+		this._boundsNeedUpdate = false;
+	},
+
+	//Set our markers position as given and add it to the map
+	_addToMap: function (startPos) {
+		if (startPos) {
+			this._backupLatlng = this._latlng;
+			this.setLatLng(startPos);
+		}
+		this._group._featureGroup.addLayer(this);
+	},
+
+	_recursivelyAnimateChildrenIn: function (bounds, center, maxZoom) {
+		this._recursively(bounds, this._group._map.getMinZoom(), maxZoom - 1,
+			function (c) {
+				var markers = c._markers,
+					i, m;
+				for (i = markers.length - 1; i >= 0; i--) {
+					m = markers[i];
+
+					//Only do it if the icon is still on the map
+					if (m._icon) {
+						m._setPos(center);
+						m.clusterHide();
+					}
+				}
+			},
+			function (c) {
+				var childClusters = c._childClusters,
+					j, cm;
+				for (j = childClusters.length - 1; j >= 0; j--) {
+					cm = childClusters[j];
+					if (cm._icon) {
+						cm._setPos(center);
+						cm.clusterHide();
+					}
+				}
+			}
+		);
+	},
+
+	_recursivelyAnimateChildrenInAndAddSelfToMap: function (bounds, mapMinZoom, previousZoomLevel, newZoomLevel) {
+		this._recursively(bounds, newZoomLevel, mapMinZoom,
+			function (c) {
+				c._recursivelyAnimateChildrenIn(bounds, c._group._map.latLngToLayerPoint(c.getLatLng()).round(), previousZoomLevel);
+
+				//TODO: depthToAnimateIn affects _isSingleParent, if there is a multizoom we may/may not be.
+				//As a hack we only do a animation free zoom on a single level zoom, if someone does multiple levels then we always animate
+				if (c._isSingleParent() && previousZoomLevel - 1 === newZoomLevel) {
+					c.clusterShow();
+					c._recursivelyRemoveChildrenFromMap(bounds, mapMinZoom, previousZoomLevel); //Immediately remove our children as we are replacing them. TODO previousBounds not bounds
+				} else {
+					c.clusterHide();
+				}
+
+				c._addToMap();
+			}
+		);
+	},
+
+	_recursivelyBecomeVisible: function (bounds, zoomLevel) {
+		this._recursively(bounds, this._group._map.getMinZoom(), zoomLevel, null, function (c) {
+			c.clusterShow();
+		});
+	},
+
+	_recursivelyAddChildrenToMap: function (startPos, zoomLevel, bounds) {
+		this._recursively(bounds, this._group._map.getMinZoom() - 1, zoomLevel,
+			function (c) {
+				if (zoomLevel === c._zoom) {
+					return;
+				}
+
+				//Add our child markers at startPos (so they can be animated out)
+				for (var i = c._markers.length - 1; i >= 0; i--) {
+					var nm = c._markers[i];
+
+					if (!bounds.contains(nm._latlng)) {
+						continue;
+					}
+
+					if (startPos) {
+						nm._backupLatlng = nm.getLatLng();
+
+						nm.setLatLng(startPos);
+						if (nm.clusterHide) {
+							nm.clusterHide();
+						}
+					}
+
+					c._group._featureGroup.addLayer(nm);
+				}
+			},
+			function (c) {
+				c._addToMap(startPos);
+			}
+		);
+	},
+
+	_recursivelyRestoreChildPositions: function (zoomLevel) {
+		//Fix positions of child markers
+		for (var i = this._markers.length - 1; i >= 0; i--) {
+			var nm = this._markers[i];
+			if (nm._backupLatlng) {
+				nm.setLatLng(nm._backupLatlng);
+				delete nm._backupLatlng;
+			}
+		}
+
+		if (zoomLevel - 1 === this._zoom) {
+			//Reposition child clusters
+			for (var j = this._childClusters.length - 1; j >= 0; j--) {
+				this._childClusters[j]._restorePosition();
+			}
+		} else {
+			for (var k = this._childClusters.length - 1; k >= 0; k--) {
+				this._childClusters[k]._recursivelyRestoreChildPositions(zoomLevel);
+			}
+		}
+	},
+
+	_restorePosition: function () {
+		if (this._backupLatlng) {
+			this.setLatLng(this._backupLatlng);
+			delete this._backupLatlng;
+		}
+	},
+
+	//exceptBounds: If set, don't remove any markers/clusters in it
+	_recursivelyRemoveChildrenFromMap: function (previousBounds, mapMinZoom, zoomLevel, exceptBounds) {
+		var m, i;
+		this._recursively(previousBounds, mapMinZoom - 1, zoomLevel - 1,
+			function (c) {
+				//Remove markers at every level
+				for (i = c._markers.length - 1; i >= 0; i--) {
+					m = c._markers[i];
+					if (!exceptBounds || !exceptBounds.contains(m._latlng)) {
+						c._group._featureGroup.removeLayer(m);
+						if (m.clusterShow) {
+							m.clusterShow();
+						}
+					}
+				}
+			},
+			function (c) {
+				//Remove child clusters at just the bottom level
+				for (i = c._childClusters.length - 1; i >= 0; i--) {
+					m = c._childClusters[i];
+					if (!exceptBounds || !exceptBounds.contains(m._latlng)) {
+						c._group._featureGroup.removeLayer(m);
+						if (m.clusterShow) {
+							m.clusterShow();
+						}
+					}
+				}
+			}
+		);
+	},
+
+	//Run the given functions recursively to this and child clusters
+	// boundsToApplyTo: a L.LatLngBounds representing the bounds of what clusters to recurse in to
+	// zoomLevelToStart: zoom level to start running functions (inclusive)
+	// zoomLevelToStop: zoom level to stop running functions (inclusive)
+	// runAtEveryLevel: function that takes an L.MarkerCluster as an argument that should be applied on every level
+	// runAtBottomLevel: function that takes an L.MarkerCluster as an argument that should be applied at only the bottom level
+	_recursively: function (boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel) {
+		var childClusters = this._childClusters,
+		    zoom = this._zoom,
+		    i, c;
+
+		if (zoomLevelToStart <= zoom) {
+			if (runAtEveryLevel) {
+				runAtEveryLevel(this);
+			}
+			if (runAtBottomLevel && zoom === zoomLevelToStop) {
+				runAtBottomLevel(this);
+			}
+		}
+
+		if (zoom < zoomLevelToStart || zoom < zoomLevelToStop) {
+			for (i = childClusters.length - 1; i >= 0; i--) {
+				c = childClusters[i];
+				if (boundsToApplyTo.intersects(c._bounds)) {
+					c._recursively(boundsToApplyTo, zoomLevelToStart, zoomLevelToStop, runAtEveryLevel, runAtBottomLevel);
+				}
+			}
+		}
+	},
+
+	//Returns true if we are the parent of only one cluster and that cluster is the same as us
+	_isSingleParent: function () {
+		//Don't need to check this._markers as the rest won't work if there are any
+		return this._childClusters.length > 0 && this._childClusters[0]._childCount === this._childCount;
+	}
+});
+
+
+
+/*
+* Extends L.Marker to include two extra methods: clusterHide and clusterShow.
+* 
+* They work as setOpacity(0) and setOpacity(1) respectively, but
+* they will remember the marker's opacity when hiding and showing it again.
+* 
+*/
+
+
+L.Marker.include({
+	
+	clusterHide: function () {
+		this.options.opacityWhenUnclustered = this.options.opacity || 1;
+		return this.setOpacity(0);
+	},
+	
+	clusterShow: function () {
+		var ret = this.setOpacity(this.options.opacity || this.options.opacityWhenUnclustered);
+		delete this.options.opacityWhenUnclustered;
+		return ret;
+	}
+	
+});
+
+
+
+
+
+L.DistanceGrid = function (cellSize) {
+	this._cellSize = cellSize;
+	this._sqCellSize = cellSize * cellSize;
+	this._grid = {};
+	this._objectPoint = { };
+};
+
+L.DistanceGrid.prototype = {
+
+	addObject: function (obj, point) {
+		var x = this._getCoord(point.x),
+		    y = this._getCoord(point.y),
+		    grid = this._grid,
+		    row = grid[y] = grid[y] || {},
+		    cell = row[x] = row[x] || [],
+		    stamp = L.Util.stamp(obj);
+
+		this._objectPoint[stamp] = point;
+
+		cell.push(obj);
+	},
+
+	updateObject: function (obj, point) {
+		this.removeObject(obj);
+		this.addObject(obj, point);
+	},
+
+	//Returns true if the object was found
+	removeObject: function (obj, point) {
+		var x = this._getCoord(point.x),
+		    y = this._getCoord(point.y),
+		    grid = this._grid,
+		    row = grid[y] = grid[y] || {},
+		    cell = row[x] = row[x] || [],
+		    i, len;
+
+		delete this._objectPoint[L.Util.stamp(obj)];
+
+		for (i = 0, len = cell.length; i < len; i++) {
+			if (cell[i] === obj) {
+
+				cell.splice(i, 1);
+
+				if (len === 1) {
+					delete row[x];
+				}
+
+				return true;
+			}
+		}
+
+	},
+
+	eachObject: function (fn, context) {
+		var i, j, k, len, row, cell, removed,
+		    grid = this._grid;
+
+		for (i in grid) {
+			row = grid[i];
+
+			for (j in row) {
+				cell = row[j];
+
+				for (k = 0, len = cell.length; k < len; k++) {
+					removed = fn.call(context, cell[k]);
+					if (removed) {
+						k--;
+						len--;
+					}
+				}
+			}
+		}
+	},
+
+	getNearObject: function (point) {
+		var x = this._getCoord(point.x),
+		    y = this._getCoord(point.y),
+		    i, j, k, row, cell, len, obj, dist,
+		    objectPoint = this._objectPoint,
+		    closestDistSq = this._sqCellSize,
+		    closest = null;
+
+		for (i = y - 1; i <= y + 1; i++) {
+			row = this._grid[i];
+			if (row) {
+
+				for (j = x - 1; j <= x + 1; j++) {
+					cell = row[j];
+					if (cell) {
+
+						for (k = 0, len = cell.length; k < len; k++) {
+							obj = cell[k];
+							dist = this._sqDist(objectPoint[L.Util.stamp(obj)], point);
+							if (dist < closestDistSq ||
+								dist <= closestDistSq && closest === null) {
+								closestDistSq = dist;
+								closest = obj;
+							}
+						}
+					}
+				}
+			}
+		}
+		return closest;
+	},
+
+	_getCoord: function (x) {
+		var coord = Math.floor(x / this._cellSize);
+		return isFinite(coord) ? coord : x;
+	},
+
+	_sqDist: function (p, p2) {
+		var dx = p2.x - p.x,
+		    dy = p2.y - p.y;
+		return dx * dx + dy * dy;
+	}
+};
+
+
+/* Copyright (c) 2012 the authors listed at the following URL, and/or
+the authors of referenced articles or incorporated external code:
+http://en.literateprograms.org/Quickhull_(Javascript)?action=history&offset=20120410175256
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Retrieved from: http://en.literateprograms.org/Quickhull_(Javascript)?oldid=18434
+*/
+
+(function () {
+	L.QuickHull = {
+
+		/*
+		 * @param {Object} cpt a point to be measured from the baseline
+		 * @param {Array} bl the baseline, as represented by a two-element
+		 *   array of latlng objects.
+		 * @returns {Number} an approximate distance measure
+		 */
+		getDistant: function (cpt, bl) {
+			var vY = bl[1].lat - bl[0].lat,
+				vX = bl[0].lng - bl[1].lng;
+			return (vX * (cpt.lat - bl[0].lat) + vY * (cpt.lng - bl[0].lng));
+		},
+
+		/*
+		 * @param {Array} baseLine a two-element array of latlng objects
+		 *   representing the baseline to project from
+		 * @param {Array} latLngs an array of latlng objects
+		 * @returns {Object} the maximum point and all new points to stay
+		 *   in consideration for the hull.
+		 */
+		findMostDistantPointFromBaseLine: function (baseLine, latLngs) {
+			var maxD = 0,
+				maxPt = null,
+				newPoints = [],
+				i, pt, d;
+
+			for (i = latLngs.length - 1; i >= 0; i--) {
+				pt = latLngs[i];
+				d = this.getDistant(pt, baseLine);
+
+				if (d > 0) {
+					newPoints.push(pt);
+				} else {
+					continue;
+				}
+
+				if (d > maxD) {
+					maxD = d;
+					maxPt = pt;
+				}
+			}
+
+			return { maxPoint: maxPt, newPoints: newPoints };
+		},
+
+
+		/*
+		 * Given a baseline, compute the convex hull of latLngs as an array
+		 * of latLngs.
+		 *
+		 * @param {Array} latLngs
+		 * @returns {Array}
+		 */
+		buildConvexHull: function (baseLine, latLngs) {
+			var convexHullBaseLines = [],
+				t = this.findMostDistantPointFromBaseLine(baseLine, latLngs);
+
+			if (t.maxPoint) { // if there is still a point "outside" the base line
+				convexHullBaseLines =
+					convexHullBaseLines.concat(
+						this.buildConvexHull([baseLine[0], t.maxPoint], t.newPoints)
+					);
+				convexHullBaseLines =
+					convexHullBaseLines.concat(
+						this.buildConvexHull([t.maxPoint, baseLine[1]], t.newPoints)
+					);
+				return convexHullBaseLines;
+			} else {  // if there is no more point "outside" the base line, the current base line is part of the convex hull
+				return [baseLine[0]];
+			}
+		},
+
+		/*
+		 * Given an array of latlngs, compute a convex hull as an array
+		 * of latlngs
+		 *
+		 * @param {Array} latLngs
+		 * @returns {Array}
+		 */
+		getConvexHull: function (latLngs) {
+			// find first baseline
+			var maxLat = false, minLat = false,
+				maxLng = false, minLng = false,
+				maxLatPt = null, minLatPt = null,
+				maxLngPt = null, minLngPt = null,
+				maxPt = null, minPt = null,
+				i;
+
+			for (i = latLngs.length - 1; i >= 0; i--) {
+				var pt = latLngs[i];
+				if (maxLat === false || pt.lat > maxLat) {
+					maxLatPt = pt;
+					maxLat = pt.lat;
+				}
+				if (minLat === false || pt.lat < minLat) {
+					minLatPt = pt;
+					minLat = pt.lat;
+				}
+				if (maxLng === false || pt.lng > maxLng) {
+					maxLngPt = pt;
+					maxLng = pt.lng;
+				}
+				if (minLng === false || pt.lng < minLng) {
+					minLngPt = pt;
+					minLng = pt.lng;
+				}
+			}
+			
+			if (minLat !== maxLat) {
+				minPt = minLatPt;
+				maxPt = maxLatPt;
+			} else {
+				minPt = minLngPt;
+				maxPt = maxLngPt;
+			}
+
+			var ch = [].concat(this.buildConvexHull([minPt, maxPt], latLngs),
+								this.buildConvexHull([maxPt, minPt], latLngs));
+			return ch;
+		}
+	};
+}());
+
+L.MarkerCluster.include({
+	getConvexHull: function () {
+		var childMarkers = this.getAllChildMarkers(),
+			points = [],
+			p, i;
+
+		for (i = childMarkers.length - 1; i >= 0; i--) {
+			p = childMarkers[i].getLatLng();
+			points.push(p);
+		}
+
+		return L.QuickHull.getConvexHull(points);
+	}
+});
+
+
+//This code is 100% based on https://github.com/jawj/OverlappingMarkerSpiderfier-Leaflet
+//Huge thanks to jawj for implementing it first to make my job easy :-)
+
+L.MarkerCluster.include({
+
+	_2PI: Math.PI * 2,
+	_circleFootSeparation: 25, //related to circumference of circle
+	_circleStartAngle: Math.PI / 6,
+
+	_spiralFootSeparation:  28, //related to size of spiral (experiment!)
+	_spiralLengthStart: 11,
+	_spiralLengthFactor: 5,
+
+	_circleSpiralSwitchover: 9, //show spiral instead of circle from this marker count upwards.
+								// 0 -> always spiral; Infinity -> always circle
+
+	spiderfy: function () {
+		if (this._group._spiderfied === this || this._group._inZoomAnimation) {
+			return;
+		}
+
+		var childMarkers = this.getAllChildMarkers(),
+			group = this._group,
+			map = group._map,
+			center = map.latLngToLayerPoint(this._latlng),
+			positions;
+
+		this._group._unspiderfy();
+		this._group._spiderfied = this;
+
+		//TODO Maybe: childMarkers order by distance to center
+
+		if (childMarkers.length >= this._circleSpiralSwitchover) {
+			positions = this._generatePointsSpiral(childMarkers.length, center);
+		} else {
+			center.y += 10; // Otherwise circles look wrong => hack for standard blue icon, renders differently for other icons.
+			positions = this._generatePointsCircle(childMarkers.length, center);
+		}
+
+		this._animationSpiderfy(childMarkers, positions);
+	},
+
+	unspiderfy: function (zoomDetails) {
+		/// <param Name="zoomDetails">Argument from zoomanim if being called in a zoom animation or null otherwise</param>
+		if (this._group._inZoomAnimation) {
+			return;
+		}
+		this._animationUnspiderfy(zoomDetails);
+
+		this._group._spiderfied = null;
+	},
+
+	_generatePointsCircle: function (count, centerPt) {
+		var circumference = this._group.options.spiderfyDistanceMultiplier * this._circleFootSeparation * (2 + count),
+			legLength = circumference / this._2PI,  //radius from circumference
+			angleStep = this._2PI / count,
+			res = [],
+			i, angle;
+
+		res.length = count;
+
+		for (i = count - 1; i >= 0; i--) {
+			angle = this._circleStartAngle + i * angleStep;
+			res[i] = new L.Point(centerPt.x + legLength * Math.cos(angle), centerPt.y + legLength * Math.sin(angle))._round();
+		}
+
+		return res;
+	},
+
+	_generatePointsSpiral: function (count, centerPt) {
+		var spiderfyDistanceMultiplier = this._group.options.spiderfyDistanceMultiplier,
+			legLength = spiderfyDistanceMultiplier * this._spiralLengthStart,
+			separation = spiderfyDistanceMultiplier * this._spiralFootSeparation,
+			lengthFactor = spiderfyDistanceMultiplier * this._spiralLengthFactor * this._2PI,
+			angle = 0,
+			res = [],
+			i;
+
+		res.length = count;
+
+		// Higher index, closer position to cluster center.
+		for (i = count - 1; i >= 0; i--) {
+			angle += separation / legLength + i * 0.0005;
+			res[i] = new L.Point(centerPt.x + legLength * Math.cos(angle), centerPt.y + legLength * Math.sin(angle))._round();
+			legLength += lengthFactor / angle;
+		}
+		return res;
+	},
+
+	_noanimationUnspiderfy: function () {
+		var group = this._group,
+			map = group._map,
+			fg = group._featureGroup,
+			childMarkers = this.getAllChildMarkers(),
+			m, i;
+
+		group._ignoreMove = true;
+
+		this.setOpacity(1);
+		for (i = childMarkers.length - 1; i >= 0; i--) {
+			m = childMarkers[i];
+
+			fg.removeLayer(m);
+
+			if (m._preSpiderfyLatlng) {
+				m.setLatLng(m._preSpiderfyLatlng);
+				delete m._preSpiderfyLatlng;
+			}
+			if (m.setZIndexOffset) {
+				m.setZIndexOffset(0);
+			}
+
+			if (m._spiderLeg) {
+				map.removeLayer(m._spiderLeg);
+				delete m._spiderLeg;
+			}
+		}
+
+		group.fire('unspiderfied', {
+			cluster: this,
+			markers: childMarkers
+		});
+		group._ignoreMove = false;
+		group._spiderfied = null;
+	}
+});
+
+//Non Animated versions of everything
+L.MarkerClusterNonAnimated = L.MarkerCluster.extend({
+	_animationSpiderfy: function (childMarkers, positions) {
+		var group = this._group,
+			map = group._map,
+			fg = group._featureGroup,
+			legOptions = this._group.options.spiderLegPolylineOptions,
+			i, m, leg, newPos;
+
+		group._ignoreMove = true;
+
+		// Traverse in ascending order to make sure that inner circleMarkers are on top of further legs. Normal markers are re-ordered by newPosition.
+		// The reverse order trick no longer improves performance on modern browsers.
+		for (i = 0; i < childMarkers.length; i++) {
+			newPos = map.layerPointToLatLng(positions[i]);
+			m = childMarkers[i];
+
+			// Add the leg before the marker, so that in case the latter is a circleMarker, the leg is behind it.
+			leg = new L.Polyline([this._latlng, newPos], legOptions);
+			map.addLayer(leg);
+			m._spiderLeg = leg;
+
+			// Now add the marker.
+			m._preSpiderfyLatlng = m._latlng;
+			m.setLatLng(newPos);
+			if (m.setZIndexOffset) {
+				m.setZIndexOffset(1000000); //Make these appear on top of EVERYTHING
+			}
+
+			fg.addLayer(m);
+		}
+		this.setOpacity(0.3);
+
+		group._ignoreMove = false;
+		group.fire('spiderfied', {
+			cluster: this,
+			markers: childMarkers
+		});
+	},
+
+	_animationUnspiderfy: function () {
+		this._noanimationUnspiderfy();
+	}
+});
+
+//Animated versions here
+L.MarkerCluster.include({
+
+	_animationSpiderfy: function (childMarkers, positions) {
+		var me = this,
+			group = this._group,
+			map = group._map,
+			fg = group._featureGroup,
+			thisLayerLatLng = this._latlng,
+			thisLayerPos = map.latLngToLayerPoint(thisLayerLatLng),
+			svg = L.Path.SVG,
+			legOptions = L.extend({}, this._group.options.spiderLegPolylineOptions), // Copy the options so that we can modify them for animation.
+			finalLegOpacity = legOptions.opacity,
+			i, m, leg, legPath, legLength, newPos;
+
+		if (finalLegOpacity === undefined) {
+			finalLegOpacity = L.MarkerClusterGroup.prototype.options.spiderLegPolylineOptions.opacity;
+		}
+
+		if (svg) {
+			// If the initial opacity of the spider leg is not 0 then it appears before the animation starts.
+			legOptions.opacity = 0;
+
+			// Add the class for CSS transitions.
+			legOptions.className = (legOptions.className || '') + ' leaflet-cluster-spider-leg';
+		} else {
+			// Make sure we have a defined opacity.
+			legOptions.opacity = finalLegOpacity;
+		}
+
+		group._ignoreMove = true;
+
+		// Add markers and spider legs to map, hidden at our center point.
+		// Traverse in ascending order to make sure that inner circleMarkers are on top of further legs. Normal markers are re-ordered by newPosition.
+		// The reverse order trick no longer improves performance on modern browsers.
+		for (i = 0; i < childMarkers.length; i++) {
+			m = childMarkers[i];
+
+			newPos = map.layerPointToLatLng(positions[i]);
+
+			// Add the leg before the marker, so that in case the latter is a circleMarker, the leg is behind it.
+			leg = new L.Polyline([thisLayerLatLng, newPos], legOptions);
+			map.addLayer(leg);
+			m._spiderLeg = leg;
+
+			// Explanations: https://jakearchibald.com/2013/animated-line-drawing-svg/
+			// In our case the transition property is declared in the CSS file.
+			if (svg) {
+				legPath = leg._path;
+				legLength = legPath.getTotalLength() + 0.1; // Need a small extra length to avoid remaining dot in Firefox.
+				legPath.style.strokeDasharray = legLength; // Just 1 length is enough, it will be duplicated.
+				legPath.style.strokeDashoffset = legLength;
+			}
+
+			// If it is a marker, add it now and we'll animate it out
+			if (m.setZIndexOffset) {
+				m.setZIndexOffset(1000000); // Make normal markers appear on top of EVERYTHING
+			}
+			if (m.clusterHide) {
+				m.clusterHide();
+			}
+			
+			// Vectors just get immediately added
+			fg.addLayer(m);
+
+			if (m._setPos) {
+				m._setPos(thisLayerPos);
+			}
+		}
+
+		group._forceLayout();
+		group._animationStart();
+
+		// Reveal markers and spider legs.
+		for (i = childMarkers.length - 1; i >= 0; i--) {
+			newPos = map.layerPointToLatLng(positions[i]);
+			m = childMarkers[i];
+
+			//Move marker to new position
+			m._preSpiderfyLatlng = m._latlng;
+			m.setLatLng(newPos);
+			
+			if (m.clusterShow) {
+				m.clusterShow();
+			}
+
+			// Animate leg (animation is actually delegated to CSS transition).
+			if (svg) {
+				leg = m._spiderLeg;
+				legPath = leg._path;
+				legPath.style.strokeDashoffset = 0;
+				//legPath.style.strokeOpacity = finalLegOpacity;
+				leg.setStyle({opacity: finalLegOpacity});
+			}
+		}
+		this.setOpacity(0.3);
+
+		group._ignoreMove = false;
+
+		setTimeout(function () {
+			group._animationEnd();
+			group.fire('spiderfied', {
+				cluster: me,
+				markers: childMarkers
+			});
+		}, 200);
+	},
+
+	_animationUnspiderfy: function (zoomDetails) {
+		var me = this,
+			group = this._group,
+			map = group._map,
+			fg = group._featureGroup,
+			thisLayerPos = zoomDetails ? map._latLngToNewLayerPoint(this._latlng, zoomDetails.zoom, zoomDetails.center) : map.latLngToLayerPoint(this._latlng),
+			childMarkers = this.getAllChildMarkers(),
+			svg = L.Path.SVG,
+			m, i, leg, legPath, legLength, nonAnimatable;
+
+		group._ignoreMove = true;
+		group._animationStart();
+
+		//Make us visible and bring the child markers back in
+		this.setOpacity(1);
+		for (i = childMarkers.length - 1; i >= 0; i--) {
+			m = childMarkers[i];
+
+			//Marker was added to us after we were spiderfied
+			if (!m._preSpiderfyLatlng) {
+				continue;
+			}
+
+			//Close any popup on the marker first, otherwise setting the location of the marker will make the map scroll
+			m.closePopup();
+
+			//Fix up the location to the real one
+			m.setLatLng(m._preSpiderfyLatlng);
+			delete m._preSpiderfyLatlng;
+
+			//Hack override the location to be our center
+			nonAnimatable = true;
+			if (m._setPos) {
+				m._setPos(thisLayerPos);
+				nonAnimatable = false;
+			}
+			if (m.clusterHide) {
+				m.clusterHide();
+				nonAnimatable = false;
+			}
+			if (nonAnimatable) {
+				fg.removeLayer(m);
+			}
+
+			// Animate the spider leg back in (animation is actually delegated to CSS transition).
+			if (svg) {
+				leg = m._spiderLeg;
+				legPath = leg._path;
+				legLength = legPath.getTotalLength() + 0.1;
+				legPath.style.strokeDashoffset = legLength;
+				leg.setStyle({opacity: 0});
+			}
+		}
+
+		group._ignoreMove = false;
+
+		setTimeout(function () {
+			//If we have only <= one child left then that marker will be shown on the map so don't remove it!
+			var stillThereChildCount = 0;
+			for (i = childMarkers.length - 1; i >= 0; i--) {
+				m = childMarkers[i];
+				if (m._spiderLeg) {
+					stillThereChildCount++;
+				}
+			}
+
+
+			for (i = childMarkers.length - 1; i >= 0; i--) {
+				m = childMarkers[i];
+
+				if (!m._spiderLeg) { //Has already been unspiderfied
+					continue;
+				}
+
+				if (m.clusterShow) {
+					m.clusterShow();
+				}
+				if (m.setZIndexOffset) {
+					m.setZIndexOffset(0);
+				}
+
+				if (stillThereChildCount > 1) {
+					fg.removeLayer(m);
+				}
+
+				map.removeLayer(m._spiderLeg);
+				delete m._spiderLeg;
+			}
+			group._animationEnd();
+			group.fire('unspiderfied', {
+				cluster: me,
+				markers: childMarkers
+			});
+		}, 200);
+	}
+});
+
+
+L.MarkerClusterGroup.include({
+	//The MarkerCluster currently spiderfied (if any)
+	_spiderfied: null,
+
+	unspiderfy: function () {
+		this._unspiderfy.apply(this, arguments);
+	},
+
+	_spiderfierOnAdd: function () {
+		this._map.on('click', this._unspiderfyWrapper, this);
+
+		if (this._map.options.zoomAnimation) {
+			this._map.on('zoomstart', this._unspiderfyZoomStart, this);
+		}
+		//Browsers without zoomAnimation or a big zoom don't fire zoomstart
+		this._map.on('zoomend', this._noanimationUnspiderfy, this);
+
+		if (!L.Browser.touch) {
+			this._map.getRenderer(this);
+			//Needs to happen in the pageload, not after, or animations don't work in webkit
+			//  http://stackoverflow.com/questions/8455200/svg-animate-with-dynamically-added-elements
+			//Disable on touch browsers as the animation messes up on a touch zoom and isn't very noticable
+		}
+	},
+
+	_spiderfierOnRemove: function () {
+		this._map.off('click', this._unspiderfyWrapper, this);
+		this._map.off('zoomstart', this._unspiderfyZoomStart, this);
+		this._map.off('zoomanim', this._unspiderfyZoomAnim, this);
+		this._map.off('zoomend', this._noanimationUnspiderfy, this);
+
+		//Ensure that markers are back where they should be
+		// Use no animation to avoid a sticky leaflet-cluster-anim class on mapPane
+		this._noanimationUnspiderfy();
+	},
+
+	//On zoom start we add a zoomanim handler so that we are guaranteed to be last (after markers are animated)
+	//This means we can define the animation they do rather than Markers doing an animation to their actual location
+	_unspiderfyZoomStart: function () {
+		if (!this._map) { //May have been removed from the map by a zoomEnd handler
+			return;
+		}
+
+		this._map.on('zoomanim', this._unspiderfyZoomAnim, this);
+	},
+
+	_unspiderfyZoomAnim: function (zoomDetails) {
+		//Wait until the first zoomanim after the user has finished touch-zooming before running the animation
+		if (L.DomUtil.hasClass(this._map._mapPane, 'leaflet-touching')) {
+			return;
+		}
+
+		this._map.off('zoomanim', this._unspiderfyZoomAnim, this);
+		this._unspiderfy(zoomDetails);
+	},
+
+	_unspiderfyWrapper: function () {
+		/// <summary>_unspiderfy but passes no arguments</summary>
+		this._unspiderfy();
+	},
+
+	_unspiderfy: function (zoomDetails) {
+		if (this._spiderfied) {
+			this._spiderfied.unspiderfy(zoomDetails);
+		}
+	},
+
+	_noanimationUnspiderfy: function () {
+		if (this._spiderfied) {
+			this._spiderfied._noanimationUnspiderfy();
+		}
+	},
+
+	//If the given layer is currently being spiderfied then we unspiderfy it so it isn't on the map anymore etc
+	_unspiderfyLayer: function (layer) {
+		if (layer._spiderLeg) {
+			this._featureGroup.removeLayer(layer);
+
+			if (layer.clusterShow) {
+				layer.clusterShow();
+			}
+				//Position will be fixed up immediately in _animationUnspiderfy
+			if (layer.setZIndexOffset) {
+				layer.setZIndexOffset(0);
+			}
+
+			this._map.removeLayer(layer._spiderLeg);
+			delete layer._spiderLeg;
+		}
+	}
+});
+
+
+/**
+ * Adds 1 public method to MCG and 1 to L.Marker to facilitate changing
+ * markers' icon options and refreshing their icon and their parent clusters
+ * accordingly (case where their iconCreateFunction uses data of childMarkers
+ * to make up the cluster icon).
+ */
+
+
+L.MarkerClusterGroup.include({
+	/**
+	 * Updates the icon of all clusters which are parents of the given marker(s).
+	 * In singleMarkerMode, also updates the given marker(s) icon.
+	 * @param layers L.MarkerClusterGroup|L.LayerGroup|Array(L.Marker)|Map(L.Marker)|
+	 * L.MarkerCluster|L.Marker (optional) list of markers (or single marker) whose parent
+	 * clusters need to be updated. If not provided, retrieves all child markers of this.
+	 * @returns {L.MarkerClusterGroup}
+	 */
+	refreshClusters: function (layers) {
+		if (!layers) {
+			layers = this._topClusterLevel.getAllChildMarkers();
+		} else if (layers instanceof L.MarkerClusterGroup) {
+			layers = layers._topClusterLevel.getAllChildMarkers();
+		} else if (layers instanceof L.LayerGroup) {
+			layers = layers._layers;
+		} else if (layers instanceof L.MarkerCluster) {
+			layers = layers.getAllChildMarkers();
+		} else if (layers instanceof L.Marker) {
+			layers = [layers];
+		} // else: must be an Array(L.Marker)|Map(L.Marker)
+		this._flagParentsIconsNeedUpdate(layers);
+		this._refreshClustersIcons();
+
+		// In case of singleMarkerMode, also re-draw the markers.
+		if (this.options.singleMarkerMode) {
+			this._refreshSingleMarkerModeMarkers(layers);
+		}
+
+		return this;
+	},
+
+	/**
+	 * Simply flags all parent clusters of the given markers as having a "dirty" icon.
+	 * @param layers Array(L.Marker)|Map(L.Marker) list of markers.
+	 * @private
+	 */
+	_flagParentsIconsNeedUpdate: function (layers) {
+		var id, parent;
+
+		// Assumes layers is an Array or an Object whose prototype is non-enumerable.
+		for (id in layers) {
+			// Flag parent clusters' icon as "dirty", all the way up.
+			// Dumb process that flags multiple times upper parents, but still
+			// much more efficient than trying to be smart and make short lists,
+			// at least in the case of a hierarchy following a power law:
+			// http://jsperf.com/flag-nodes-in-power-hierarchy/2
+			parent = layers[id].__parent;
+			while (parent) {
+				parent._iconNeedsUpdate = true;
+				parent = parent.__parent;
+			}
+		}
+	},
+
+	/**
+	 * Re-draws the icon of the supplied markers.
+	 * To be used in singleMarkerMode only.
+	 * @param layers Array(L.Marker)|Map(L.Marker) list of markers.
+	 * @private
+	 */
+	_refreshSingleMarkerModeMarkers: function (layers) {
+		var id, layer;
+
+		for (id in layers) {
+			layer = layers[id];
+
+			// Make sure we do not override markers that do not belong to THIS group.
+			if (this.hasLayer(layer)) {
+				// Need to re-create the icon first, then re-draw the marker.
+				layer.setIcon(this._overrideMarkerIcon(layer));
+			}
+		}
+	}
+});
+
+L.Marker.include({
+	/**
+	 * Updates the given options in the marker's icon and refreshes the marker.
+	 * @param options map object of icon options.
+	 * @param directlyRefreshClusters boolean (optional) true to trigger
+	 * MCG.refreshClustersOf() right away with this single marker.
+	 * @returns {L.Marker}
+	 */
+	refreshIconOptions: function (options, directlyRefreshClusters) {
+		var icon = this.options.icon;
+
+		L.setOptions(icon, options);
+
+		this.setIcon(icon);
+
+		// Shortcut to refresh the associated MCG clusters right away.
+		// To be used when refreshing a single marker.
+		// Otherwise, better use MCG.refreshClusters() once at the end with
+		// the list of modified markers.
+		if (directlyRefreshClusters && this.__parent) {
+			this.__parent._group.refreshClusters(this);
+		}
+
+		return this;
+	}
+});
+
+
+}(window, document));
\ No newline at end of file
diff --git a/dist/leaflet.markercluster.js b/dist/leaflet.markercluster.js
new file mode 100644
index 0000000..beccbca
--- /dev/null
+++ b/dist/leaflet.markercluster.js
@@ -0,0 +1,7 @@
+/*
+ Leaflet.markercluster, Provides Beautiful Animated Marker Clustering functionality for Leaflet, a JS library for interactive maps.
+ https://github.com/Leaflet/Leaflet.markercluster
+ (c) 2012-2017, Dave Leaver
+*/
+!function(e,t,i){L.MarkerClusterGroup=L.FeatureGroup.extend({options:{maxClusterRadius:80,iconCreateFunction:null,clusterPane:L.Marker.prototype.options.pane,spiderfyOnMaxZoom:!0,showCoverageOnHover:!0,zoomToBoundsOnClick:!0,singleMarkerMode:!1,disableClusteringAtZoom:null,removeOutsideVisibleBounds:!0,animate:!0,animateAddingMarkers:!1,spiderfyDistanceMultiplier:1,spiderLegPolylineOptions:{weight:1.5,color:"#222",opacity:.5},chunkedLoading:!1,chunkInterval:200,chunkDelay:50,chunkProgres [...]
+},_unspiderfy:function(e){this._spiderfied&&this._spiderfied.unspiderfy(e)},_noanimationUnspiderfy:function(){this._spiderfied&&this._spiderfied._noanimationUnspiderfy()},_unspiderfyLayer:function(e){e._spiderLeg&&(this._featureGroup.removeLayer(e),e.clusterShow&&e.clusterShow(),e.setZIndexOffset&&e.setZIndexOffset(0),this._map.removeLayer(e._spiderLeg),delete e._spiderLeg)}}),L.MarkerClusterGroup.include({refreshClusters:function(e){return e?e instanceof L.MarkerClusterGroup?e=e._topClu [...]
\ No newline at end of file

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/pkg-javascript/leaflet-markercluster.git