[AMQ-4994] Remove site-mesh
Remove sitemesh jar from assembly, not needed anymore
More updates for removing sitemesh, remove activemq-all.
Merge ../activemq into remove-sitemesh
Converted to JUnit4 because of CI hangs, see AMQ-5021
https://issues.apache.org/jira/browse/AMQ-5017

Enforce max prefetch limit even in setAll and set inputstream using all
value.
Use non-deprecated output methods for proton to allow for faster bulk
sends of outbound amqp frames.
ensure stack trace is in trace logging of exception