Fix for texture on jellyrob_blue_blender.fbx; apparently you can map textures,
as well as materials, by polygon.  Closes #1844.
Merge branch 'master' of https://github.com/highfidelity/hifi
Merge branch 'master' of https://github.com/highfidelity/hifi
Merge branch 'master' of https://github.com/highfidelity/hifi
Merge branch 'master' of https://github.com/highfidelity/hifi
Merge pull request #1931 from ey6es/master

Fix for textures on Blender FBX exports (such as jellyrob_blue_blender.fbx).