Made AddPointHandler work on a FeatureSource instead of a FeatureListSource.
Merge branch 'master' of github.com:gwaldron/osgearth
Updated osgearth_terrainprofile to use scene clamping instead of map to speed it up.
Merge branch 'master' of github.com:gwaldron/osgearth

Conflicts:
	src/applications/osgearth_terrainprofile/osgearth_terrainprofile.cpp
Merge branch 'master' of github.com:gwaldron/osgearth
Merge branch 'master' of github.com:gwaldron/osgearth
Merge branch 'master' of github.com:gwaldron/osgearth
Merge branch 'master' of github.com:gwaldron/osgearth
Merge branch 'master' of github.com:gwaldron/osgearth
Updates to the GDAL driver documentation.
Merge branch 'master' of github.com:gwaldron/osgearth