first experimental cut at overlay image
fix voxel texture to work better with larger TREE_SCALE
first cut at auto-LOD adjustment
Merge branch 'master' of https://github.com/worklist/hifi into lowerLODnoFPSdrop
add proper readWriteLocks around the VBO arrays to preven random triangles
first working cut at recreateVoxelGeometryInView()
add menu item for auto adjust LOD
removed some debug
added back setupNewVoxelsForDrawing() on changeTree()
correctly lock arrays on init
Merge branch 'master' of https://github.com/worklist/hifi into overlaysupport
first working version of scriptable Overlays
Adding collisions options to menu at a second location.

And adding CollideWithParticle option which will be working soon...
Cleaning up collision check API's and re-enabling collisions with particles.
Merge branch 'master' of ssh://github.com/highfidelity/hifi into avatar-interaction
more work on image overlays
removed getProperties() which was not implemented
add support for detecting clicked on overlays
tweaks to overlays
fix windows build