Adding new AgentTypes.h and moving over to new constants
adding more changes and small improvements to camera, and head...
Adding friendly names to AgentType display.
Got rid of AGENT_TYPE_HEAD and fixed voxel server to use AGENT_TYPE_INTERFACE
resolve merge conflicts with origin/master
Merge branch 'master' of https://github.com/worklist/hifi
add back voxels.render() call
fixed bug in avatar arm IK prototype
Ya Ya Too Cool Too Cool

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Merge branch 'master' of https://github.com/worklist/hifi
condensed avatar bone line code
added camera modes and also set initial avatar yaw to 90
removed glm::dvec3 and replaced with glm::vec3 in most of avatar code, except for velocity
Changed to render a small box of a fixed pixel width at screen center, useful for testing LOD Changes.
Merge remote-tracking branch 'origin'
added a method to ask the avatar for it's head lookat vector
added grid plane to aid in testing avatar navigation
Improved comments at start of main.cpp, dropped unused octal.h,.cpp files, deleted many unused system variables and functions.
Merge remote-tracking branch 'origin'
temp commented groundPlaneGrid till file is fixed
added key interface to toggle voxels