Updated to Dojo 1.9.1.
Fixes COMETD-470 (Seti leaks userIds).

Now Seti sends an additional "alive" field during start and stop, so that remote Setis
know if the message belong to a newborn or dying Seti.
Only if it is a newborn, Seti pushes its associations to it.
Reducing logging level for Spring.
Cleaned up usage of ClientTransport's terminate() and reset().
Fixes COMETD-468 (Improve reconnection behavior for WebSocket).

Now the WebSocket transport remembers if it was able to connect
and does not disable the transport if it was.
BayeuxClient.onFailure() now logs at debug level, so there is no
need to override it to suppress exception stack traces in tests.
Fixed tests that was failing due to the new semantic of disconnect.
Now the WebSocket transport closes the connection as soon as the
disconnect response is processed on the client (before it was leaking
connections).
Fixed JDK 5 compilation issue.
Fixes COMETD-463 (UserAgent is null in canHandshake).

Now the User-Agent is set before the call to SecurityPolicy.canHandshake().
This also removed a duplication present in every transport.
Fixes COMETD-469 (Publishing on meta channels is allowed).

Now an exception is thrown if the channel is a meta channel.
[maven-release-plugin] prepare release 2.7.0
[maven-release-plugin] prepare for next development iteration
Merged branch '2.7.x' into 'master'.