Properly handle SockJS session time outs.
   - Fixes https://bugs.eclipse.org/bugs/show_bug.cgi?id=425074
Use sendWithTimeout in EventBusBridge so reply handlers are cleaned up if a client does not reply.
Retain the JSESSIONID cookie for sockjs requests.
Merge branch 'sockjs-fixes' of https://github.com/nscavell/vert.x