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
Fix text() property in LabelNode
Merge branch 'master' of github.com:gwaldron/osgearth
Merge branch 'master' of github.com:gwaldron/osgearth
Docs update
merge
bump version for RC3 oops
Docs update.
Docs update: caching
docs update: envvars.
docs update. started on driver reference.
Added getFeature to the MeasureTool so callbacks can have access to the feature so they can do things like render text labels at the end of the line that is drawn.
Merge branch 'master' of https://github.com/gwaldron/osgearth
docs update.