Add KML support
Add TIF+TFW support
Fix TFW creation
Send image extension on world file creation (after reproj)
Several small fixes for extractorapp reprojection of locally.
Fix generation of tfw files.
Fix TAB creation with real image size and properties file for CRS def
Merge pull request #272 from fgravin/extractKML

new extractorapp formats : kml, tif + tfw,tab