Use rpc_backend = nova.openstack.common.rpc.impl_qpid

rpc_backend=nova.rpc.impl_qpid only works for backwards compat

Change-Id: I6fe119bc53d156e0603d3e422ac2abe393f5b691
Add message details about host format

https://bugzilla.redhat.com/show_bug.cgi?id=915382

Change-Id: I1e37781754bd01e410d9bede1ebab89f45a6ca0e
Fixing double First typo

https://bugzilla.redhat.com/show_bug.cgi?id=911626

Change-Id: Ie21274bc9e0bd9cba80dc1c4c8ad4f067de0eac3
Merge "Add message details about host format" into folsom
Merge "Fixing double First typo" into folsom