Most of the way towards basic Oculus support.
More work on Oculus integration; added some notes to explain the source of the
magic numbers.
Merge branch 'master' of https://github.com/worklist/hifi

Conflicts:
	interface/src/main.cpp
Final bits for Oculus support.  Works!
Restored constant value added another reference to the SDK docs.
Use the right type here; Xcode complains about it.
Need to disable blending when we render the distorted screen quad.
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
Merge branch 'master' of https://github.com/worklist/hifi

Conflicts:
	interface/src/main.cpp
Rather than a command line parameter, provide a menu option for switching
to/from fullscreen mode.
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
Merge pull request #182 from ey6es/master

Support for rendering to Oculus rift.