Update notes for submitted changes

* 1. Change contrail-status to do HTTP introspect query to find    NodeStatus.ProcessState.state for a process and use it to    determine the status of the service printed. 2. Added a new state - initializing to contrail-status. 3. Added map for service name to default HTTP introspect ports in    vns.sandesh 4. Change pysandesh to display the uve data type instead of the    uve type in sandesh uve types request to make it consistent    with the C++ library.