Comment 16 for bug 1439769

Since this is a longstanding critical bug, in the absence of any response I'm going to go ahead with uploading both the aptdaemon and update-manager changes to wily, with an eye to SRUing it to trusty and vivid later.

This does break compatibility with older aptdaemon, so I am adding a versioned Depends from update-manager. If the aptdaemon patch is rejected upstream and needs to be reverted in Ubuntu (in favor of a different solution), then some versioned Breaks will be needed at that time.