Comment 0 for bug 913658

After loading a dae file, this needs to be done:

for s in n.findAllTextureStages():
    n.unifyTextureStages(s)

Related issue: flattenStrong also does not unify texture stages, so to flatten a laoded dae file the above is needed.

There may be other things that should be unified when loading dae files. I still have some flattening issues I haven't resolved.