Added an UNORDERED option to QueueKeeper
Not all packets require order be preserved, in particular
its actively harmful as a way to deal with PacketIn.
So... I added a QueueType enum {DEFAULT, UNORDERED} (so
we could in principle decide we need different queues in the future)
Kept the existing queueKeeper beahvior for existing invocations
Changed over PacketIn to using UNORDERED
Made PacketInTranslator a bit more robust.
Change-Id: Id835e9840ed26f9ed10e9090ce49ffaa429a002c
Signed-off-by: Ed Warnicke <eaw@cisco.com>