workaround for [#36443] Vertex to UV index doesn't match with 2.68a

- until the <BMesh>.faces.new(..) is scrambling the vertices order (input -> output), i use the workaround, that build a de-scramble dictionary.
  i still thing it is a bug in blender 2.68.

- got rid of unneeded option 'io_scene_ms3d.set_sence_to_metric', Ms3dSetSceneToMetricOperator, set_sence_to_metric


git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4678 96b784f8-4ae3-dd11-aff7-0030488c597c