[[Split portion of a mixed commit.]]

Additional changes:

- Fixed wrong pop of rectangle area (function wasn't called)
- Removed unused code

job and frame status cleanup (move to the model module)
record transitions between states in job to be able to get (among others) the started and finished time.

from Alexander Gessler (aramis_acg)

This patch extends the 3DS importer and exporter to have better material support and unifies their respective feature sets.

This includes:
- UV scale,offset
- tiling/wrap modes
- improved conversion of mapping targets
- better warnings

Additionally, the exporter now handles specular, opacity and normal maps correctly (the importer did this already). (I think the way how textures were written previously was non 3DS-compliant).

I tested this against assimp's 3DS test suite [1] as well as my personal 3DS test sets. Exported 3DS files were successfully read by FBXConv and assimp.

[1] http://assimp.svn.sourceforge.net/viewvc/assimp/trunk/test/

bpy_extras.io_utils.path_reference() expects a real dir as base_src, not the blend file name!

added warning "some mesh functions broken"

Don't add empty tag if not tags have been specified.

Reported by Brant Anderson (by email)

The Atomic Blender panel is loaded correctly when a blend file is loaded.

Blendphys.

baking and render options for tags on slaves (default true for both means a slave can do all jobs by default)

from Alexander Gessler (aramis_acg) 

invalid operator return value when downloading results from a job with no finished frames

render jobs tags weren't set at all.

Reported by Brant Anderson (by email)

No commit message

Fix a typo "Confgiguration" -> "Configuration" 

Patch by Tobias Kummer (tobkum), thanks! 

Faces should be exported with shared vertices whenever possible (otherwise this is simply a STL exporter). Since PLY stores normals per vertex it's understandable that we need 'individual' faces when exporting normals. However when this is not the case I think shared vertices should be default behaviour. This is what this patch implement.

Thanks Campbell for reviewing it. Thanks Aldo Zang for reporting it (off trackers, in the old fashion real life)

Replace usage of mesh.faces with mesh.polygons

- pep8 edits for after effects script.