added gsn tools
added conditions in rest api filter
updated commons codec, upgraded web xml 2.5
upgraded web xml
sh scripts updated to unix lf
Merge branch 'RestApi_GeoJson' of github.com:LSIR/gsn into RestApi_GeoJson

Conflicts:
	installer/gsn-start.sh
	installer/gsn-stop.sh
Update gsn-start.sh

space deleted