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
Fixed bad warning msg in earth loader
Merge branch 'master' of github.com:gwaldron/osgearth
Docs: color filter reference
Update startup.rst
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.