Remove qpid port and authentication details

Port 5672 is the default qpid port, and therefore does not need to be
specified (it is also inconsistent with previous qpid configuration
steps, which do not specify a port).  Additionally, no authentication
was configured for qpid in the documentation, so the authentication
details should be removed.

Change-Id: I94514507588a1683b9119e0f285b54ef9df67fea
Closes-Bug: #1307345
Edits to the End User Guide dashboard chapter with corrections from Anne G

Change-Id: Ia9961bbdab446e15930d0b31176c37fe1d532b8f
Move start of RabbitMQ before changing password

We can change the password of RabbitMQ only if RabbitMQ is already
running. So, start it first and then change the password.

Change-Id: I72275162be13c010a93adac01152996739b44bd0
Merge "Remove qpid port and authentication details"
Merge "Move start of RabbitMQ before changing password"