Fix: bad texture coordinates
VirtualProgram: fix memory leak when adding and removing a shader over and over.
missing add
VP: fix crash when FrameStamp is null
osgearth_conv: update API to match new TileHandler API
Move VP program cache into registry and update
Release gl objects in VP program cache cleansing; separate out SharedSARepo into its own header file
Minor fixes to em
EarthManipulator: remove max pitch clamping to -1
Basic first steps to a modified ear clipping tessellator.
Update earthfile.rst
Working now in coords local to each feature part.
Adding hole support for polygons.
CMake update.
EarthManipulator: cap time delta in continuous-action handling, so avoid overreaching when the frame rate is very low
Merge branch 'master' of github.com:gwaldron/osgearth
Added an unRefImageDataAfterApply policy to the Registry; reconfigured texture compression for terrain tiles to be off by default
EM: relcalc updates
VirtualProgram: better GLSL support detection
Added back in --keep-empties option to the TMS packager.