Material Utils: Added feature to set fake user (on/off) for materials as requested by meta-androcto. There are different modes: ACTIVE, SELECTED, SCENE (materials of objects), USED, UNUSED, ALL (materials).

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4524 96b784f8-4ae3-dd11-aff7-0030488c597c
Now if applink dosen't find V4 exchange folder, it will look for V3 folder.

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4526 96b784f8-4ae3-dd11-aff7-0030488c597c
fix possible error referencing unknown var


git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4527 96b784f8-4ae3-dd11-aff7-0030488c597c
missed this last commit


git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4528 96b784f8-4ae3-dd11-aff7-0030488c597c
attempted quick fix was quick bug.


git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4529 96b784f8-4ae3-dd11-aff7-0030488c597c