Undo editmode and global undo code back.
It's now called ED_undo_push() btw, but don't worry, for operators
this is going to be a simple operator flag, so you can remove the
old calls from all tools (but keep them when you directly change
data outide modifiers).
Will put undo back functional tomorrow
EditMesh: further cleanup, made derivedmesh itterator functions
work by gathering all related data in local ViewContext struct.
(scene, editmesh, region, view3d, obedit).
Also removed bad inclusion of view3d_intern.h in mesh module.
Editmesh code cleaned and compiling/linking. A whopping
20k lines back! :)
Not that it does stuff... editmode in/out has to be done,
and loads of operators. Also linking/exporting editmesh
calls has to be reviewed.
Also: added a blender_test_break() mechanism in BKE.
