Univention Corporate Server 3.2 erratum 137 (bugfix)

This update fixes several issues:
* The local UCR variable uuid/license is now removed if the key ID is missing
  in the UCS license.
* univention-add-app no longer registers a link on the UCS startsite and
  removes the component again if called with --master (just like the App
  Center module)
* The component installation status is now transferred via the apt user agent.