added GeoJSON format for RestApi
added latest values in /sensors response (/service?latest_values=true)
added latest values caching
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
Update RestApiConstants.properties
Merge pull request #26 from LSIR/RestApi_GeoJson

Rest api geo json, added expressions, merged refactor