added list/map inspect and list compare

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1516825 13f79535-47bb-0310-9956-ffa450edef68
removed dead code

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1516829 13f79535-47bb-0310-9956-ffa450edef68