update generated files to AMQP 0-9-1.
update version negotiation
stylish
support basic.qos
add rejectEnv and various instances.
clear warnings
lint check
clear warnings
update FieldValue definition to be compliant to the AMQP 0-9-1 spec.
type signature of openConnection changed.
add a field named 'exchangeArguments' to ExchangeOpts.
add a field named 'queueArguments' to QueueOpts.
fix sample.
suitable type signatures
export Data.Default.def
pub/sub test
performance test
add withConnection
fix samples
added Lifted functions