QPID-5443 - Improvements to configuration processing
 - Added enumerated values to the config schema
 - Added enumeration checking to the config parser
 - Improved reporting (via log) of failures during configuration
 - The process now exits when a configuration failure is encountered
 - Added config syntax for setting fixed address semantics per prefix
 - Added logging of debug mode when built without NDEBUG


git-svn-id: https://svn.apache.org/repos/asf/qpid/dispatch/trunk@1552793 13f79535-47bb-0310-9956-ffa450edef68
QPID-5436 - Applied patch from Darryl Pierce


git-svn-id: https://svn.apache.org/repos/asf/qpid/dispatch/trunk@1553138 13f79535-47bb-0310-9956-ffa450edef68