Bug#725186: [libmetadata-extractor-java] Please, upload 2.6.1 to Debian unstable

[Emmanuel Bourg]

Updating libmetadata-extractor-java to 2.6.x will also require an upload
of gpsprune (See #717638).

Also note that josm uses a slightly modified version of
metadata-extractor. They found a regression while migrating to 2.6.4 and
had to patch the code:

http://josm.openstreetmap.de/ticket/8895#comment:27
http://josm.openstreetmap.de/changeset/6209/josm

Emmanuel Bourg