Merge remote-tracking branch 'luiz/queue/qmp' into staging

# By Amos Kong (1) and Luiz Capitulino (1)
# Via Luiz Capitulino
* luiz/queue/qmp:
  virtio-balloon: fix integer overflow in BALLOON_CHANGE QMP event
  monitor: fix the wrong order of releasing keys

Message-id: 1366375833-995-1-git-send-email-lcapitulino@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>