Blender Git Loki

some picky rna/variable renaming:
Mesh.wp_vert_sel --> use_paint_mask_vertex

- move vgroup lock buttons on the panel into the vgroup specials menu.
- merge object.vertex_group_lock_all / object.vertex_group_invert_locks / "object.vertex_group_unlock_all into one operator.
- change lock button from a checkbox to a lock icon.

- use a flag define for bDeformGroup->flag rather than setting TRUE/FALSE
- rename RNA bDeformGroup.flag to "lock_weight"

remove count_selected_defgroups() function and make get_selected_defgroups() return the total selected items.
also some variable renameing, no functional changes.

another cleanup pass, quiet all warnings for GCC
- comment unused funcs/vars.
- replace some allocs with stack variables.
- use BLI_math functions to replace in-line vector math.

minor edits to ascii draw function, unused var warning.

initial cleanup for weight paint branch
- move get_selected_defgroups & count_selected_defgroups into blenkernel
- split calc_weightpaint_vert_color() logic so its more obvious whats default and multipaint behavior

svn merge -r40195:40197 https://svn.blender.org/svnroot/bf-blender/trunk/blender

move ED_object_pose_armature --> object_pose_armature_get to so we dont get bad level calls in the weight paint branch.

svn merge -r40179:40195 https://svn.blender.org/svnroot/bf-blender/trunk/blender

removed nodes from CMake's BLENDER_LINK_LIBS, rewrote find-pcre using own template.

- removed some duplicate library links from cmake (which were needed because of bad level calls)
- FindXML2 we had copied from another project was always running and not using cached value, rewrote based on template used for most of our other find modules which makes use of 'FindPackageHandleStandardArgs'
- mark statuc collada libs as advanced.

resolve bad level calls from blenkenel/ into editors/ & remove editors from the include path from CMake & SCons.

* ED_curve_editnurbs --> curve_editnurbs
* ED_sculpt_modifiers_changed --> object_sculpt_modifiers_changed

Merged changes in the trunk up to revision 40189.

Re-added the interface template for vertex groups' checkboxes (they were cut out in a merge conflict)

fix compilation for MinGW by substituting qsort_r with qsort. What aversion do MinGW guys have for including '_r' variants of functions anyway?
Warning: a clean build will be needed probably to account for recent merge changes, or link errors will occur.

Fix typo in own commit for raycast library

Enable FFTW3 library for buildslaves

quiet compiler warnings

Submit of patch [#28568] BMesh: make active element highlights work