[Bf-committers] clean up of editmesh_loop.c the loopoperations

[Tom M]

I've cleaned up the loopoperations code a bit, reduced the code size
by 200 lines of code and made it a bit more readable.

https://projects.blender.org/tracker/index.php?func=detail&aid=2369&group_id=9&atid=127

Goofster or GuitarGeek could you please review and commit?

Thanks,

LetterRip