Ensure exchange is declared before subscribing.
Added primitive reconnect to example script.
Separated PubSub client into separate publisher/subscriber interfaces.
Added tests for JsonSerializer.
Reimplemented using native PHP AMQP library.
Implemented RPC
Added tests for Rpc namespace.
Added tests for AmqpRpcClient.
Added tests for RPC server.
code-style
Used slash instead of dot for AMQP resources (fixes #2)
Added parameter for controlling sleep time.
Added logging to AMQP pub/sub implementation and AMQP RPC client (#7)
Who would have thought that logging would necessitate such changes :P
Updated stump
Merge branch 'feature/logging' into develop

Conflicts:
	examples/pubsub-publisher
	examples/rpc-client
Refactored server for simplicity and robustness.
Finished logging tests (fixes #7)
WIP
Added argument validation (#5)