renamed avatar skeleton from "bones" to "joints" to be more consistent with standard language. Also improved skeleton some
adjusted proportions of avatar skeleton to make it closer to average human
(1) added avatar tilting while walking; (2) added avatar renderer; (3) tweaked body proportions; (4)
adding avatar renderer
various changes to help debug render pipeline
- fixing some cases where TREE_SCALE was not using constant in prep for making TREE_SCALE larger
- added createLine() to VoxelTree
- added axis lines made of voxels to scene
- added corner points made of voxels to scene
Merge branch 'master' of https://github.com/worklist/hifi into render_voxels_optimization
Fixes per merge (Ventrella)
Merge pull request #181 from Ventrella/master

renamed avatar "bones" to "joints", and improved skeleton
Merge pull request #186 from ZappoMan/render_voxels_optimization

Some more tweaks to test pipeline
Merge branch 'master' of https://github.com/worklist/hifi

Conflicts:
	interface/src/Avatar.cpp
	interface/src/Avatar.h
	interface/src/main.cpp