add rabbit snapshot/serialization case

Change-Id: I23996df06a76c24eb86de5dc179bfcfdc442c638
Reviewed-on: http://reviews.cloudfoundry.org/13708
Tested-by: CI Master <cf-ci@rbcon.com>
Reviewed-by: Tang Rui <rtang@vmware.com>
Reviewed-by: Nicholas Kushmerick <nicholask@vmware.com>