fix/resolve [#36173] Current frame doesn't update while OpenGL Rendering Animation

there was no feedback to the user about the current frame rendering, for longer renders this is no good.


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58331 954f8c5b-7b00-dc11-b283-0030488c597c
re-commit temp workaround [#35920], this still fails for OSX retina display,
but at least it resolves for DPI values other then 72.


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58334 954f8c5b-7b00-dc11-b283-0030488c597c
Fix for #36150, missing Preview Render Updates with Add/Remove material slot. 

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58335 954f8c5b-7b00-dc11-b283-0030488c597c
Possible fix for [#36086] Activating the opencl option in the compositor causes blender crash
* Now OCL_init() returns error messages if the OpenCL library cannot be loaded. 

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58338 954f8c5b-7b00-dc11-b283-0030488c597c
fix [#36176] Connected font Bevel moves inwards for some letter combinations
bevel wasn't taking into account overlapping text (bug goes back to 1.8).


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58339 954f8c5b-7b00-dc11-b283-0030488c597c
style cleanup


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58340 954f8c5b-7b00-dc11-b283-0030488c597c
Added some documentation for the minimal progress bar in blender_python_api

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58346 954f8c5b-7b00-dc11-b283-0030488c597c
Hide unnecessary error print when showing tooltip over a property with no RNA
path, ideally this would work everywhere but it's a known limitation, no need
to print an error in the console each time it happens.

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58347 954f8c5b-7b00-dc11-b283-0030488c597c
Fix: #36184 Collada import/export... leaf bone size was not set as needed.

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58351 954f8c5b-7b00-dc11-b283-0030488c597c
Leaf bone length calculation used wrong bone tail

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58352 954f8c5b-7b00-dc11-b283-0030488c597c
* Fix a typo in code. 

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@58354 954f8c5b-7b00-dc11-b283-0030488c597c