QPID-3838 If stric-jms flag is used qpid.subject is prefixed with "JMS_"
to ensure we are in compliance with the JMS spec. Without this fix we
fail the JEE TCK.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1480656 13f79535-47bb-0310-9956-ffa450edef68