Blender Git Loki

UI / Code:
Cody style changes for r58692.
* First of all, UI code is really simple, especially in such small panels, no need to comment obvious things like left/right column.
* "if 1" nested structs for code clarity? That's a really bad thing, especially if you have 3 lines which belong together, but only 2 of them are indented...

sub = row.row()
sub.active = obj.show_bounds
sub.prop(obj, "draw_bounds_type", text="")

* Empty line after layout = self.layout declarations, we still follow these Rules.
http://wiki.blender.org/index.php/Dev:2.5/Py/Scripts/Guidelines/Layouts

Thanks!

new mesh tool for cleaning up meshes, splits up non-planar faces while they exceed a given angle threshold
(access from the 'Mesh -> Clean' menu).

add inline functions getting a single axis from mul_m3_v3()

use '_exec' suffix for operator execute callbacks, also picky change to sizeof() use in BLI_array.h

add BLI_alloca.h, missed in previous commit

patch [#36233] Fix Halo and Billboard Normal and Behavior
from Vitor Balbio (vitorbalbio)

Fixes billboard flipping (flipped normals and textures too)

patch [#36296] object->display-properties subpanel layout cleanup
from David Jeske (jeske), with minor edits of my own.

move suspicious break statement in drawDispListsolid() to prevent falling through.

move alloca define into its own header since its not related to BLI_array

bmesh: skip error checks when building in release mode (minor speedup),
also more strict use of BLI_array_declare(), only allow after array is declared.

fix for freed memory access clearing tracks in the clip editor.

remove unneeded NULL checks, add one for give_matarar() return value.

Merged revision(s) 58585-58681 from trunk/blender into soc-2013-dingto.

code cleanup: remove unused code

fix for BKE_deform_split_suffix()
- out of bounds read when passing in empty string.
- single character prefix didnt work.
- with no suffix, the string body was truncated.

remove unused code & some redundant NULL checks.

cleanup ED_view3d_from_m4() ambiguity with NULL checks, now assert if dist is set up but ofs.
also small optimization for matrix conversion.

correct sloppy NULL checks, in interface code:
- uiPupMenuBegin was checking for NULL title but would still crash if it were NULL.
- now tag the function as 'nonnull' and remove NULL checks. make sure NULL isnt passed to it.

code cleanup: remove redundant NULL checks and avoid writing to the source string.
also rename BLI_replacestr() -> BLI_replacestrN() since it returns an allocated buffer.

Code cleanup: Remove unused and unneeded code