[Debian-med-packaging] Bug#715530: JAI alternative

[Johan Van de Wauw]

Geotools and geoserver are two widely used java GIS packages which now
rely on their own JAI alternative. I believe this may be an
interesting alternative for other projects as well:

https://github.com/geosolutions-it/jai-ext

JAI-EXT is an open-source project which aims to replace in the long
term the JAI project. JAI is provides a set of high level objects for
the image processing. One feature of the JAI API is the ability to
process the images in a multithreaded environment; this functionality
can be reached by calculating each image tile separately.