alternate-server code cleaned



git-svn-id: http://rfc5766-turn-server.googlecode.com/svn/trunk@1513 d3c6d0af-6456-5cbd-3218-6188ca4e956b
TCP-TCP c.a.



git-svn-id: http://rfc5766-turn-server.googlecode.com/svn/trunk@1515 d3c6d0af-6456-5cbd-3218-6188ca4e956b