Prepare the job to manage pdf and geopdf
Delete unused classes. Prepare the job to export the map as a geospatial pdf
Some clean up
Merge with master and add new format supports in the ui
Add new format supports to the ui
Fix @nicolas comments
This commit

add some javadoc the orbisgis-core layer model
add an utility class to create a geospatial pdf from a layer or a group of layer. The TOC tree structure is preserved during the export process.
Fix JPEG image export
Fix backgroundcolor for jpeg image
Fix backgroundcolor for jpeg image
Merge pull request #536 from ebocher/orbisgis_pdf

Orbisgis view exporter