DISPATCH-2344: Fixes #473 - Reduced the severity of "unknown router" logs from ERROR to WARNING.
DISPATCH-2344: Fixes #473 - Reduced the severity of "unknown router" logs from ERROR to WARNING.

(cherry picked from commit cd616e792a142d7b016fe6440d19ac37d728fe1f)

apache/dispatch,apache/qpid-dispatch,apache/qpid-dispatch,apache/dispatch,apache/dispatch,apache/dispatch,apache/qpid-dispatch,apache/qpid-dispatch,apache/qpid-dispatch,apache/dispatch,apache/dispatch,apache/dispatch,apache/qpid-dispatch