CocoMUD client

When clicking on the Help -> Check for updates menu, and no update is available, an exception is raised:

Traceback (most recent call last):
  File "C:\python27\lib\site-packages\wx-3.0-msw\wx\_core.py", line 16766, in <lambda>
    lambda event: event.callable(*event.args, **event.kw) )
  File "C:\python27\lib\site-packages\wx-3.0-msw\wx\lib\pubsub\core\kwargs\publisher.py", line 27, in sendMessage
    topicObj.publish(**kwargs)
  File "C:\python27\lib\site-packages\wx-3.0-msw\wx\lib\pubsub\core\kwargs\publishermixin.py", line 24, in publish
    self._publish(msgKwargs)
  File "C:\python27\lib\site-packages\wx-3.0-msw\wx\lib\pubsub\core\topicobj.py", line 376, in _publish
    self.__sendMessage(data, self, iterState)
  File "C:\python27\lib\site-packages\wx-3.0-msw\wx\lib\pubsub\core\topicobj.py", line 397, in __sendMessage
    self._mix_callListener(listener, data, iterState)
  File "C:\python27\lib\site-packages\wx-3.0-msw\wx\lib\pubsub\core\kwargs\publishermixin.py", line 64, in _mix_callListener
    listener(iterState.filteredArgs, self, msgKwargs)
  File "C:\python27\lib\site-packages\wx-3.0-msw\wx\lib\pubsub\core\kwargs\listenerimpl.py", line 43, in __call__
    cb(**kwargs)
  File "C:\Users\Vincent\src\cocomud\src\ui\window.py", line 453, in OnResponseUpdate
    wx.MessageBox(message, t("ui.message.information"),
  File "C:\python27\lib\site-packages\ytranslate\tools.py", line 98, in t
    return FSLoader.current_catalog.retrieve(address, count, **kwargs)
  File "C:\python27\lib\site-packages\ytranslate\catalog.py", line 241, in retrieve
    "catalog".format(repr(address)))
ValueError: address 'ui.message.information' cannot be found in this catalog

This probably comes from the fact that this particular message has been moved in the catalogs of translations.