Blender Git Loki

Reuse UVCALC_TRANSFORM_CORRECT as Campbell suggested. I have enabled it
default for now to test with all transforms when ready and will probably
disable for certain transformations later. This resolves #29771.
Also fixed evil crasher due to index variable strolling out of bounds.

svn merge ^/trunk/blender revision 46974

Maintain image transform tool
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Add intermediate function to detect boundary edges that will be
artificially pinned and faces to reunwrap. Still not 100% certain the
reunwrap method will work, still I hope it will do the trick. Still, a
similar function will likely be needed for the second method that I will
use, should the first one fail.

Maintain image transform tool
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GUI and RNA options for retain image transform tool. This is known as
"preserve UVs" in other programs, but I find this terminology deceptive
because UVs are, in fact, modified. It is actually the image that is
maintained on the mesh.

svn merge ^/trunk/blender -r46037:46826

new gsoc branch