Enhancing the wait_for_receipt test function.

git-svn-id: https://svn.apache.org/repos/asf/activemq/activemq-apollo/trunk@1464035 13f79535-47bb-0310-9956-ffa450edef68
Switch to the development version of hawtdispatch.

git-svn-id: https://svn.apache.org/repos/asf/activemq/activemq-apollo/trunk@1464036 13f79535-47bb-0310-9956-ffa450edef68