Vaadin 7 sample

This is the sample application generated
by the Vaadin Maven artifact.

Guice Servlet Extension was setup this way:
1. GuiceFilter is registered by annotatating an empty subclass of it
(MyGuiceFilter).
2. MyServletContextListener is registered also using an annotation.

Guice's Assistedinject is also use.
Method interception in conjuction with assisted inject is also
demonstrated.