Bumped appengine version dependency in pom
Support for onOpen in Channel
Message is now IsSerializable (RPC)
onOpen in ChannelListener
Trying out no policy for serializing in ChannelServer
Pointing demo to 0.2-SNAPSHOT of gwt-channel-api
<threadsafe> in appengine-web.xml (for new version)
Catching exceptions in server implementation
onOpen in GUI
+onError and onClose to ChannelListener (and impl)
+onError and onClose in GUI (GwtChannelApiDemo)
[maven-release-plugin] prepare release gwt-channel-api-0.2
[maven-release-plugin] prepare for next development iteration