flakes
Renamed serialization.encode/decode -> .dumps, .loads
Removes amqp version check
Adds kombu.message.Message
Replaced StdConnectionError+StdChannelError with amqp.ConnectionError+amqp.ChannelError
Cosmetics
Change redis transport to rpush rather than lpush messages on the queue when they are restored to make the ack emulation more consistent with the amqp transport.
Adds Mark Lavin to AUTHORS
Redis: reject+requeue should restore at beginning (Related to #254)
Adds kombu.async.maybe_block context
Do not check heartbeats when in blocking sections
Merge branch 'master' into asyncmove

Conflicts:
	kombu/async/hub.py
	kombu/connection.py
	kombu/serialization.py
Tests passing