Updated translations.
Working on ability to set a region of the metavoxel data directly.
More set/blend bits.
Working on voxelizing spanners using a set of six rendered images.
More work on voxelizing.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels

Conflicts:
	interface/interface_en.ts
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Basic voxelization.
Blend when setting.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Fix for voxelizing models.
Working on model rendering modes.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Working on render modes.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Extent tweaks.
Removed debugging code.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Switched from storing Euler angles to using quaternions along with a
quaternion editor.  Also, use a default step of 0.01 for floats/doubles.
Fix for rotation placement.