Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Optimized performance of newTreeToArrays() by implementing blended VBO strategy
- Introduced concept of sometimes only updating the new/changed part of the VBO
  while other times updating the full VBO. This allows us to get the speed
  advantage of only partial VBO updates when nodes haven't been removed
- Some debugging output related to _alwaysRenderFullVBO
- added cleanupRemovedVoxels() which actually deletes the nodes that were
  previously removed (fixes a memory leak!!)
Fixed problem with springy body repositioning on startup
spacing
spacing
cleaned up a few small code thingies; added a check for where avatar velocity updates avatar position;
Merge remote-tracking branch 'upstream/master'
Merge pull request #255 from tschw/19188

removes equator, achieves uniform distribution of stars
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Working on voxel editing.
Merge branch 'master' of https://github.com/worklist/hifi
Voxel Render Optimization - using blended VBO update strategy
- Fixed a bug in updateNodeInArraysAsFullVBO() that caused blended strategy
  to not work properly.
- Implement strategy to usually update only the portion of the VBOs that
  have changed, unless nodes have been removed, and then update the full
  VBO. This siginificantly improves treeToArrays() performance
- Still to do implement partial strategy for copy buffers and update GPU
Merge branch 'master' of https://github.com/worklist/hifi into render_voxels_optimization
Set up the lights after applying the camera transform so that they will be in
world, not view, space.
also read accelerometer data from invensense boards
correct the accelerometer sensitivity
Merge pull request #256 from birarda/accel

read accelerometer data from the invensense board
Merge branch 'master' of https://github.com/worklist/hifi