server.wait now checks for server.interrupt, so start_with_callback won't hang on error in server.start.
server.wait now checks for server.interrupt, so start_with_callback won't hang on error in server.start.

--HG--
extra : convert_revision : svn%3Ae1d34091-3ce9-0310-8e96-997e60db3bd5/trunk%40889

cherrypy/magicbus