Changes

Sto1: corrections bugs and new implementations
Correction of some bugs:
    - supress the anotation transcient on verificationToken
    - persistence.xml in jsf need the class name of the entity
    - persistence.xml in rest need the class name of the entity
    - *.xml update the name of the atributes to the same in
      the database and add users and events to use in the test
    - UserEJB modification of the method sendConfirmationUrl
      because the other code not have a good functionality
      when the verificationToken is null
    Create:
    - EventEJB
    - EventEJBTest
    - ServiceTestSuite
    - letta-mysql.inserts.sql
    Update:
    - isEqualToUser ckeck the new attribute accepted
    - User add new attribute and put the method getter, setter
      and registeredUser with the javaDoc of the method
    - Event.java is modified to put the size of attribute head to
      50 characters
task15: add test data
     -user-create-event.xml add new good events and
     bad events to prove they are not created
    -User.java is modified to add public to the default
     constructor