RabbitMQConnection: Do not reject invalid messages

If a message could not be read correctly it should not be rejected,
this causes an error on the socket and no more messages are received

Change-Id: Ieb717080ba69fb60db16c2d86e8f8c8e6de61958
RabbitMQConneciton: Remove useless code

Change-Id: Ib91909320b6c74f4a191a53906cc3b60d6be25f8
RabbitMQListener: Read messages that are received before main loop starts

Change-Id: Ia0c4f622aef1692388d8ea13b1540a84f96b7339
debian: Fix packages description

Change-Id: I66a8c0b98e422474b4775fb2ef8b1b2396ef475e