missing include and added a warning to UIBlock

source/blender/python/api2_2x/Curve.c

@@ -32,6 +32,7 @@
 
 #include "Curve.h" /*This must come first*/
 
+#include "BLI_blenlib.h"
 #include "BKE_main.h"
 #include "BKE_displist.h"
 #include "BKE_global.h"

source/blender/python/api2_2x/doc/Draw.py

@@ -249,6 +249,7 @@ def UIBlock(draw):
 	@note: Within this popup, Redraw events and the registered button callback will not work.
 		For buttons to run events, use per button callbacks.
 	@note: OpenGL drawing functions wont work within this popup, for text use L{Label} rather then L{Text}
+	@warning: L{Menu} will not work properly within a UIBlock, this is a limitation with blenders user user interface internals.
 	"""
 
 def Register(draw = None, event = None, button = None):