optimised shader import and fixed a small bug that wasn't allowing
shader flages to set.
Merge pull request #189 from Ghostwalker71/optimize/shader_import

optimised shader import and fixed a small bug that wasn't allowing
Optimize version import set
changed several try to if statments in collision import and one if not
to if in nif import.
Merge pull request #191 from Ghostwalker71/optimize/various

Optimize/various
Updating animation to the 2.71 api
Finally deciphered actions and fcurves. Getting closer to animation
importing.
Rigged mesh imports with animation files. Still some misapplied data
remains.
Added custom variable checks to allow morrowind base_anim import to
process again. bbox has no center value