Blender Git Loki

Fix #23073: glsl and 3d view background color didn't take color managment into
account yet, should now be consistent with render.

Fix weird colours in areas of high transmission when camera inside a volume.

Added back modal keymap items for view manipulation mode switching in
zoom/pan, so they can be added in customisation. Not sure why these were removed.

== Sculpt ==

* Changed rotation brush to not scale down the rotation angle; easier to control this way (and works the same as anchored brush rotation.)

Note: rotate brush seems to work much better with USE_ORIGINAL_NORMAL, this should probably be made the default, if not forced on.

Fixed some potential memory corruption

bugfix [#23062] Resolve conflict button in text editor dissappers in Blener 2.5 beta release
also uncommented console some code for testing by mistake & remove warning.

bugfix [#23075] Point clouds invisible with VBOs

minor changes to r30843
- the __main__ modules namespace was initialized cleanly but left dirty, now restore when finished executing a script incase a module uses this later.
- made the interactive console use the __main__ modules namespace.

- reworked conversion to dtStatNavMesh in KX_NavMeshObject to support navigation mesh editing

* for win64 fftw3 support is already enabled by default, doing so also for win32.

Fix #23071: making vertex parent not correct with subsurf modifier, now it
also uses the final derivedmesh for the coordinates in edit mode.

bugfix [#23065] Pickle can not dump instances of user defined classes
- __import__("__main__").__dict__ will now always match the current scripts namespace. (which is what pickle expects).
- __builtins__ as a module rather then a dict from PyEval_GetBuiltins() acts slightly differently, use the module to follow python.

Fix #22959: uv selection mode was not initialized correctly for new scenes.

Fix #22996: switching scenes did not exit editmode, meaning changes
made were not visible in the other scene in object mode.

Audaspace Refactor:

* Removed whole Capabilities System
* Fixed Py API error strings
* Improved some Py API properties
* Minor other changes

fix for running rna subclasses own __init__ functions.
- exceptions in the __init__ functions were not being checked for and segfaulting
- avoid creating a new BPy_StructRNA instance per function call, use the existing one if the type matches.

Fix #22964: incorrect derivatives for global texture coordinates, showed up as
artifacts in bump mapping.

Audaspace: HUGE Refactor.

Some points of the refactor not sorted by importance:

* Fixed immutability of readers and factories (there are exceptions...)
* Fixed copy constructors and = operators
* Removed messaging system
* Removed reader types
* Added const where possible
* Using initalisers when possible
* Avoided use of pointers when possible
* Removed AUD_NEW and AUD_DELETE macros
* Removed useless NULL pointer checks
* Fixed exception catching
* Fixed some yet unknown bugs
* Lots of other stuff

Assorted small volume render related fixes.

Fix [#22197] empty XYZ text size changing according to distance from origin

Partial revert for commit r 27946

Empty/axis xyz text is now purely aligned to object space. Previous 3d view matrix manipulation
stuff that I added wasn't correct, and causing more problems than it solved. Perhaps someone
can tweak this later to be fixed size/screen aligned, but for now this is less annoying.