QPID-5343 - Fixed the drain protocol on senders.
          - Added a check for absent correlation IDson agent requests.


git-svn-id: https://svn.apache.org/repos/asf/qpid/dispatch/trunk@1542092 13f79535-47bb-0310-9956-ffa450edef68
QPID-5338: Removing empty directories left behind by git.


git-svn-id: https://svn.apache.org/repos/asf/qpid/dispatch/trunk@1542364 13f79535-47bb-0310-9956-ffa450edef68