Added normals to voxel geometry, enabling lighting.
Merge pull request #133 from ey6es/master

Normals for voxel geometry.
Merge remote-tracking branch 'upstream/master'
fix getter for hand state in AvatarData
Merge pull request #134 from birarda/master

fix getter for hand state
Fixes per code review
Merge remote-tracking branch 'upstream/master'