Bug 711298 - "Edit Scheduled Transaction" window way too modal

Put dialogs and utility windows in the same level as normal and
toolbar windows so that Gtk can control their stacking instead of
forcing them, rather unnaturally, to be on top of all other windows,
even other application windows, even when another application has
focus.

gdk/quartz/gdkwindow-quartz.c

@@ -2200,8 +2200,6 @@ window_type_hint_to_level (GdkWindowTypeHint hint)
 
     case GDK_WINDOW_TYPE_HINT_UTILITY:
     case GDK_WINDOW_TYPE_HINT_DIALOG:  /* Dialog window */
-      return NSFloatingWindowLevel;
-
     case GDK_WINDOW_TYPE_HINT_NORMAL:  /* Normal toplevel window */
     case GDK_WINDOW_TYPE_HINT_TOOLBAR: /* Window used to implement toolbars */
       return NSNormalWindowLevel;