Blender Git Loki

cmake & pep8 tidy up, also some style edits.

remove unneeded collection length function.

bmesh: fixed merge issues with navmesh (though I've not tested if it works yet).
also fixed a small crasher in bridge.

SVN maintenance.

UI/Nodes: templates to edit nodes from the properties editor using a tree view,
to be used by cycles. For testing there's a panel in the node editor if you set
debug to 777, didn't enable it because I'm not sure it's very useful there.

Nodes: add foreach_nodeclass iterator over node classes, use for node add menu.

Fix [#29194] Spelling error
(yes sir, it is a bugfix :P ).

Hopefully compilation with MinGW will work again.
Tested with official MinGW and SCons, not sure how ti check it when using CMake.

Textures/Shaders: extend TexMapping to include projection options, and add a
ColorMapping struct for color manipulation of textures. These will be the
standard built-in texture node options for manipulating the incoming texture
coordinate and outgoing color.

Nodes: add socket option to hide the default value in the UI, to be used for
sockets that get their default value if no node is connected from elsewhere,
e.g. a texture coordinate.

Cycles: svn merge -r41613:41627 ^/trunk/blender

Revert fix for #29146, needs deeper changes to solve this fully.

Merge with trunk r41625

RNA:
* Expose 3D view camera zoom and offset, needed if you want to precisely
reconstruct camera parameters.
* Rename SpaceFileBrowser.operator to active_operator, to avoid conflict
with c++ keyword.

quiet warnings when building without libmv

fix for error in own recent commit.

use macro for access to library filepath

CMake: add delayed_install macro to specify files to be installed from modules
other than source/creator.

CMake: Boost and OpenImageIO building support (unused still).

fix for error using freed memory

Some small fixed for camera tracking:

- Lock to selection and center to selection will now work fine with undistorted rendering
- Do not display pyramid for disabled tracks
- Corrected fix for wrong correlation_min property name