pioneerspacesim/pioneer — pull request #1223 by johnbartholomew (2012-04-26 06:12:50+00:00)
Title: Fix a couple of LMR problems that are in people's way

**NOT FOR MERGE** (there's another thing on the todo list for this patch)

Bugs/limitations addressed:

* When loading .obj files with associated textures, there was a bug that caused each individual face (triangle or quad) from the .obj to generate a separate OP_DRAW_ELEMENTS operation in the model oplist.
* Documentation of the way load_obj handles .mtl files was incorrect.
* .mtl files containing texture channels other than diffuse caused an assert (actually PiVerify) error on load.