Blender Git Loki

Fix for [#25878] UV Scale/Rotate/Grab break with non grid snapping.
* The selected uv-vertices (the ones being transformed) weren't being disregarded as snapping targets, so moving two verts that were in the same location together was impossible.

Bugfix #26462

Using "search menu" for browsing ID data (material, texture, brush)
wasn't sending an undo-push after use. This messed up undo or redo.

New particle collisions code:
* The old collisions code detected particle collisions by calculating the
collision times analytically from the collision mesh faces. This was
pretty accurate, but didn't support rotating/deforming faces at all, as
the equations for these quickly become quite nasty.
* The new code uses a simple "distance to plane/edge/vert" function and
iterates this with the Newton-Rhapson method to find the closest particle
distance during a simulation step.
* The advantage in this is that the collision object can now move, rotate,
scale or even deform freely and collisions are still detected reliably.
* For some extreme movements the calculation errors could stack up so much
that the detection fails, but this can be easily fixed by increasing the
particle size or simulation substeps.
* As a side note the algorithm doesn't really do point particles anymore,
but uses a very small radius as the particle size when "size deflect" isn't
selected.
* I've also updated the collision response code a bit, so now the particles
shouldn't leak even from tight corners.

All in all the collisions code is now much cleaner and more robust than before!

COLLADA conformance: don't write empty libraries for effect, image and animation

Fix for crasher on Win XP, submitted by Kanttori.

size is 32 on XP, while sizeof(ri) gives 40. Pick the smaller one to pass to memcpy to prevent crashes.

fix for building on ubuntu 11.04 (pre-release), also remove WITH_INSTALL from cache.

fix for [#26533] didnt take scene strips into account, tested copy/pasting scene strips now works with audio.

fixed [#26533] Audio strip mute after copy/paste

fix [#26510] Crash when changing an object's property value

while looking into a problem in interface.c, noticed ui_get_but_val() is called frequently when the return value isn't used (no functional change).

fix for using freed memory with modal grease pencil draw.

fix for error in r35590, ARRAY_LAST_ITEM was returning one item over the end of the array.

fix [#26532] Does not save in specified format

old bug from r6568 (or before) in BKE_write_ibuf(), when passed TAGA format it would use whatever format the image buffer already had.
expect this is exposed by updated image saving code in 2.5x.

scons fix

scons fix

scons fix

add a button for bevel to the view3d toolbar, so it has a place in the ui.

committed before removing debug limits, I had it so you could bevel in a negative percentage

=bmesh=

Bevel! Implemented bevel (from scratch). Man is
this tool way cooler then I thought it was. Note that
uv/vcol interpolation is working (loop level data) but
vert/edge data (like vgroups) likely still needs
work.

add sphinx api reference note that menu's layout.operator_context defaults to EXEC_REGION_WIN rather then INVOKE_DEFAULT.