*Commented out a property that was not yet implemented in exporter
*Added frame number export for hand made pov animation
Thanks to a patch made by Markku Myllymäki

Added Subsurface passes to be taken into account in addon's operators.

undo the workaround of my previous commit for "[#36443] Vertex to UV index doesn't match with 2.68a", because that issue is fixed in blender 2.68a r59343 now.

- deleted not needed workaround for issue [#36443], because it is fixed in blender 2.68a r59343,
- added BMEdge generation to the importer (only for nice doing),
- added undo to operators,
- deleted some unused strings,

MHX importer: Tested with Blender 2.68a. Better FK/IK snapping, which however only works with mhx rig in MH svn.

- r3954/patch [#32914], introduced incorrect displacement map name, corrected.
- added support for reading displacement maps.
- remove checks that added alpha support for diffuce images, OBJ has alpha material settings for this.

- support multiple materials per mesh.
- support multiple UV layers.
- fix but where an extra dummy face would be imported.

- added support for property templates (FBX uses fallback templates so properties can have default values)
- fix but in importing blender-internal material bumpmap.

Note: import gimp image also would need it, but it would anyway need a good cleanup (handling of paths is ugly), so did not bothered with it for now.

- 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

use diffuse alpha channel if no other alpha channel set, hidden option to treat all alpa as decals (no shadow and z offset)