NO-JIRA: [Java Test Framework] PortHelper, apply socket option *before* binding the socket

* Also removed the datagramsocket bind.  We don't used datagram sockets at all at the moment, so
  the complication/overhead seems unjustifiable.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1609454 13f79535-47bb-0310-9956-ffa450edef68