Merge pull request #16 from danielsoro/master

[Pull Request Accepted]
Alter inject to constructor inject
Include of the hibernate implementation of JSR 303 (Bean Validation), configuration to use @Valid with VRaptor and addition of ValidationUtil class to simplify bean validation with prefix of the form fiels
Little corrections on README.md file
Include of errorMessage tag and singleCheckbox tag, addition of changelog to add fields to Sector table, include in Sector model the fields email , active and respondsOccurrence
#13 Arquillian configuration with Wildlfy 8.0.0.CR1 and example test running
Merge pull request #18 from efraimgentil/master

[Pull Request Accepted]
Validation Sector with Bean Validation ( Using Hibernate Implementation  from JSR 303 )