[Telepathy] merge: telepathy-gabble

[Merge Monkey]

Merge to:

  telepathy-gabble

Changes:

  Robert McQueen <robert.mcqueen at collabora.co.uk>
    fix leak of GList elements in ListPendingMessages with clear set to True

  Robert McQueen <robert.mcqueen at collabora.co.uk>
    fix leak of sender in BaseConnection's _release_handles implementation

  Robert McQueen <robert.mcqueen at collabora.co.uk>
    fix leak of the reply message in connection_iq_disco_cb

  Robert McQueen <robert.mcqueen at collabora.co.uk>
    fix leak of all of the avatars we request

  Robert McQueen <robert.mcqueen at collabora.co.uk>
    fix leak of sender in BaseConnection's _hold_handles implementation