actor: Deprecate rotation center properties

The pivot point supercedes the per-axis center of rotation, including
the one based on the gravity enumeration.

https://bugzilla.gnome.org/show_bug.cgi?id=677853

clutter/deprecated/clutter-behaviour-rotate.c

@@ -42,6 +42,7 @@
 #include <math.h>
 
 #define CLUTTER_DISABLE_DEPRECATION_WARNINGS
+#include "deprecated/clutter-actor.h"
 
 #include "clutter-alpha.h"
 #include "clutter-behaviour.h"