PROTON-222, PROTON-225, PROTON-235: fix windows build

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1446744 13f79535-47bb-0310-9956-ffa450edef68
PROTON-100: cleaned up example README, removed outdated examples, added simple php messenger example

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1446748 13f79535-47bb-0310-9956-ffa450edef68