Blender Git Loki

-> Return of old style selection code, extrude tools and delete tools.

Made the decision to not change too much, so old style selection with flushing is back
for the forseeable future. This also means the return of the 'what do you want to delete today'
menu when hitting xkey. Also added new unified extrude code and restored old menus for it.
Transform options are not exactly the same after initializing an extrude because face normals
are not calculated properly yet for in editmode, this should be fixed soon....