integrated chat WebSocketServlet example
proof of concept: creating activity on web socket message
recording track points via WebSocket
added start event, time and activity type
reduced framework logging
re-activated name property in thin activity
added GET to activity rest service
removed junit deprecation warnings
uses request param for activity count
updated user rest service

- added GET which returns all users
- adjusted getUserActivities to return a plain list instead of the wrapper object
removed ThinActivities
fixed static resources paths
moved generation of track multipolyline and bounds to json serializer
fixed redirect after user registration
reverted use of JSON track serializer in API

The generation of a multipolyline can easily be handled by the client.
- deactivated persistence while live tracking
- fine tuned message object
deactivated persisting of a newly started live activity
added tomcat maven plugin (not yet working)
upgraded geotools
fixed NPE if for some reason the STARTED event was not receives before a RECORDING event