Merge pull request #7 from eumario/master

Fixed Location for Importing.
Revert "Updated PrimMesher from https://github.com/lkalif/PrimMesher"

This reverts commit 0b79c7507d063d3cd26b1e730c37a11e6728788d.
Added GUI for Collada export

Added support for texture export
Cannot use color if ther is a texture on a face

Rotate prims around root in order to keep correct root roatation