2.5

Instead of many commits, here 1!

- Constraint edit code back
- Removed XXX stubs for constraints
  (make parent follow path works)
- Removed XXX stubs for armature
  (make parent deform, do center, etc works)
- Found a bad uninitialized global Scene * in code, especially
  in kernel it wreaked havoc.
- added missing include in blenkernel/brush.c
- fixed Nicholas' fix for editmode subsurf crash
  (It needed to check for editmode)

source/blender/python/intern/stubs.c

@@ -39,4 +39,5 @@ void BPY_clear_script() {}
 void BPY_free_compiled_text() {}
 void BPY_pyconstraint_eval() {}
 void BPY_pyconstraint_target() {}
-
+int BPY_is_pyconstraint() {return 0;}
+void BPY_pyconstraint_update() {}