Blender Git Loki

fix for undo issues with generic, multi-purpose WM_OT_context* operators, operators now check if they modify certain ID data (not screne, wm, brush or scene) and only do undo in those cass.

- Zkey to switch shading was pushing undo's.
- Wkey to interactively edit camera, lamp settings wasnt doing an undo push when it should.
- Toggling settings (such as bone boolean options) now skips an undo push if there are no items selected.