Python Bugfix,

Setting the user preference for python scripts didnt add the bpymodules subdirectory to sys.path (python module search path).
Also problems with entering and exiting- the old path was used until next restart.

source/blender/src/header_script.c

@@ -117,6 +117,7 @@ static void do_script_scriptsmenu(void *arg, int event)
 	switch(event) {
 	case 0: /* update menus */
 		BPyMenu_RemoveAllEntries();
+		BPY_rebuild_syspath();
 		if (BPyMenu_Init(1) == -1) error("Invalid scripts dir: check console");
 		break;
 	}