this also cleaned up the edit mesh sub menu.
multiselect options taken from script by liquidApe.

- mist wasnt updated for rna renaming
- meshes with no faces were failing

Finished support for Full Animation with armature bones.  Full Animation should be completely working now.

converted to meshes, making export fail with empties and armatures.

- can export multiple objects (all selected, not only active one)
- can import multiples stl file at once with the file selector

cosmetic fixes, suggested by Shane Ambler (sambler), thx :)
[#23279] Small cosmetic fix to addons
https://projects.blender.org/tracker/?func=detail&atid=127&aid=23279&group_id=9

this commit also makes a minor change with path joinin in preset_utils.py

* add tests for nodes.
* update poll() usage to be according changes in blender

- cleanup: removed unnecessary options lists

* Now it should _finally_ work as intended.

- mesh_surface_sketch.py
- render_renderfarmfi.py
- space_view3d_align_tools.py
- object_cloud_gen.py

also move bl_addon_info to the top for faster parsing.

These scritps still need changes related to parent classes
- mesh_surface_sketch.py
- render_renderfarmfi.py
- space_view3d_align_tools.py
- object_cloud_gen.py

After discussion with Campbell I've made povray an addon as a package (will remove from bf-blender).
Please roport any glitch or mistake I might have done while porting.

port of script by Jimmy Hazevoet
thanks to ideasman for the noise module.

* Version 0.7.5.2 - Changed callback registration back to original code & fixed bug in there (use bl_idname instead of bl_label)