DISPATCH-56: Remove module-level SCHEMA in qdrouter.py

This was a bad idea, if the schema file changes the python compiler will
not know that it needs to recompile the .pyc and mayhem ensues.
Always create the qdrouter.Schema() object at runtime.

git-svn-id: https://svn.apache.org/repos/asf/qpid/dispatch/trunk@1599631 13f79535-47bb-0310-9956-ffa450edef68
DISPATCH-56: Fix PYTHONPATH for running qdrouterd_man.py and tests.

These were breaking because pythohn path was not set correctly during the build.

git-svn-id: https://svn.apache.org/repos/asf/qpid/dispatch/trunk@1599632 13f79535-47bb-0310-9956-ffa450edef68