Include release info used by manage.update

In the cleanup section of the Manage classes updateLibrary method (manage.update), the release info returned from movie.list is expected to have the id key and the files key, including the appropriate data (it performs release.delete or release.clean depending on what it's doing).  The changes from RuudBurger/CouchPotatoServer@ac9aaec7b8eee6b44b8306127269ede1c0f3c959 appears to have removed that info, resulting in a KeyError exception.