2.5: multiple small fixes

- wm draw method is now initialized correct when reading older
  files, but the SDNA bug causing the problem is still unsolved.
  is due to // char pad[8]; not being recognized as commented.
- triple buffer proxy texture test follows spec better now,
  was disabling triple buffer unnecessarily on some drivers.
- some cmake compile fixes related to sequencer pthread usage
  and removed bad level calls lib for player.
- show outliner header buttons in oops mode as well until that
  can be switched in the UI.
- fix region data free issue for tooltips
- warning fixes

source/blender/python/intern/bpy_rna.c

@@ -455,7 +455,7 @@ static PyObject *pyrna_prop_subscript( BPy_PropertyRNA * self, PyObject *key )
 {
 	PyObject *ret;
 	PointerRNA newptr;
-	int keynum;
+	int keynum = 0;
 	char *keyname = NULL;
 	
 	if (PyUnicode_Check(key)) {
@@ -505,7 +505,7 @@ static PyObject *pyrna_prop_subscript( BPy_PropertyRNA * self, PyObject *key )
 static int pyrna_prop_assign_subscript( BPy_PropertyRNA * self, PyObject *key, PyObject *value )
 {
 	int ret = 0;
-	int keynum;
+	int keynum = 0;
 	char *keyname = NULL;
 	
 	if (!RNA_property_editable(&self->ptr, self->prop)) {