removed a bunch of cruft from VoxelSystem
more cruft removal
more cruft removal getting rid of false color in VoxelTreeElement
Merge branch 'master' of https://github.com/worklist/hifi into cruft_removal
moved SceneUtils out of voxels library into voxel-edit
remove scene utils from voxels
oops
clean up application access to deleteVoxelAt()/createVoxel()/getVoxelAt() to access VoxelTree directly
removed findSpherePenetration() and findCapsulePenetration() from VoxelSystem, use VoxelTree
removed VoxelSystem::findRayIntersection() use tree directly
removed more VoxelSystem wrappers, call VoxelTree directly
removed dead code
more VoxelSystem vs VoxelTree cleanup
removed some dead code
removed some dead code
remove HoverVoxel
remove some ray pick helper code that was only used by hover voxel, main ray pick still exists
remove more cruft from VoxelSystem, move getElementEnclosingPoint() to Octree class where it belongs
expose getVoxelEnclosingPoint() to JS, and clean up JS version of findRayIntersection()
removed unneeded class def