meta_display_list_windows: Exclude override-redirect

Don't include override-redirect windows in the list return by
meta_display_list_windows(), since we almost never want to handle
them when considering "all window" for the display. Add a separate
meta_display_list_all_windows() that includes override-redirect
windows.

http://bugzilla.gnome.org/show_bug.cgi?id=582639

src/core/place.c

@@ -839,7 +839,7 @@ meta_window_place (MetaWindow        *window,
     GSList *all_windows;
     GSList *tmp;
     
-    all_windows = meta_display_list_windows (window->display);
+    all_windows = meta_display_list_windows (window->display, META_LIST_DEFAULT);
 
     tmp = all_windows;
     while (tmp != NULL)