Blender Git Loki

Fix #29030: render operator only used scene property if layers was used, now it
is possible to specify the scene without the layer too.

Fix 28960: if BM_free_data_layer[_n] removed the last layer, we didn't clear data->pool and instead kept it pointing to the pool that gets freed at the end of update_data_blocks

Disable converting multires to absolute space during bmesh edits, as this was causing bmesh edits that used absolute space to have no effect on the higher levels of the multires mesh.

Fix [#28772] Filepaths are not remmaped after making a library item local
Added a visitor function to simplify processing of file paths that are attached to IDs. This is used for images, and could be used for other ID types in future.
Code reviewed by ideasman_42.

workaround for createTransEditVerts overwriting index data to fix mirror.

Camera tracking integration
===========================

Other fixes for issues pointed by Brecht.

- smooth tool now works for mirror.
- mirror was selecting verts from 0.4 distance which causes errors.
- utility function EDBM_ApplyMirrorCache(...)

svn merge -r41266:41287 ^/trunk/blender

cmake - set configuration specific defines globally rather than mixing in with c/cxx flags

New option for disabling the chaining of feature edges in the Parameter Editor mode.

Camera tracking integration
===========================

More fixes for reports from codereview.

Fix compilation error for win32.

That static align trick i've wrote about is still necessary.

Fix bugs to get X-Mirror editing functionality working again

SVN maintenance.

edits to cmake

- fix numpad comma replacement which was broken since unicode input was added.
- add blender-softwaregl wrapper script for unix
- quiet compiler warning.

Libraries upgrade:

- Upgrade Eigen2 library to Eigen3
- Upgrade colamd library and placed in extern/ so other libraries from extern/ can use it

NOTE: With previous version of Eigen (3.0.1) it was necessary to define
EIGEN_DONT_ALIGN_STATICALLY macro to make it compilable on windows 32bit.
After latest upgrade it seems to be unnecessary (at least when was testing libmv),
so i removed that defines which can reduce speed and lead to other problems.

cmake macro to set less strict flags per file - remove_strict_flags_file(file, file...)

this way we can avoid removing strict flags for all files in blenkernel.

misc small edits, remove remaining Id's

remove $Id from headers