demote warning to debug for sugar_accel_group

src/sugar3/graphics/colorbutton.py

@@ -402,7 +402,7 @@ def _add_accelerator(tool_button):
     # TODO: should we remove the accelerator from the prev top level?
 
     if not hasattr(tool_button.get_toplevel(), 'sugar_accel_group'):
-        logging.warning('No Gtk.AccelGroup in the top level window.')
+        logging.debug('No Gtk.AccelGroup in the top level window.')
         return
 
     accel_group = tool_button.get_toplevel().sugar_accel_group

src/sugar3/graphics/menuitem.py

@@ -77,7 +77,7 @@ class MenuItem(Gtk.ImageMenuItem):
         # TODO: should we remove the accelerator from the prev top level?
 
         if not hasattr(self.get_toplevel(), 'sugar_accel_group'):
-            logging.warning('No Gtk.AccelGroup in the top level window.')
+            logging.debug('No Gtk.AccelGroup in the top level window.')
             return
 
         accel_group = self.get_toplevel().sugar_accel_group

src/sugar3/graphics/toggletoolbutton.py

@@ -36,7 +36,7 @@ def _add_accelerator(tool_button):
 
     # TODO: should we remove the accelerator from the prev top level?
     if not hasattr(tool_button.get_toplevel(), 'sugar_accel_group'):
-        logging.warning('No Gtk.AccelGroup in the top level window.')
+        logging.debug('No Gtk.AccelGroup in the top level window.')
         return
 
     accel_group = tool_button.get_toplevel().sugar_accel_group

src/sugar3/graphics/toolbutton.py

@@ -36,7 +36,7 @@ def _add_accelerator(tool_button):
 
     # TODO: should we remove the accelerator from the prev top level?
     if not hasattr(tool_button.get_toplevel(), 'sugar_accel_group'):
-        logging.warning('No Gtk.AccelGroup in the top level window.')
+        logging.debug('No Gtk.AccelGroup in the top level window.')
         return
 
     accel_group = tool_button.get_toplevel().sugar_accel_group