Changes

[sto7 - task41/task42] Obtains events from an user
A logged user can view her events thats are created by him. The page
"myEvents.xhtml" show the events from the logged user. For this, the
"eventController.java" call the method getMyEvents() define in
"EventEJB.java" witch obtain the list of events. In the
"EventEJBTest.java" the method testGetMyEventsAreCreatedByMe() check if
the list of events whitch are returned have the same creator who is
logged.

[sto7 - task41/task42] test with wallEvents
Do diferents tests to prove the view of the jsf is correct and you can
view the events and access to their characteristics.

[sto7 - task41/task42] added the atribute canceled
the attribute canceled is added on the event-created-by-user.xml to
execute the test

[sto7 - task41/task42] refactorization
rename some variables in the eventEJBTest.java class to better
understand of the code