Update ClusteredGroupingExample.java

Fix comment in example and step ordering.
Merge pull request #1695 from MichaelDrogalis/master

Update ClusteredGroupingExample.java
AMQP Multi Protocol support
Renaming ProtonRemotingconnection
simple renaming
more work done
more work
work done
work
fix
more work
fix
fix
fix
PRogress on integration
Adding some properties