fixing wrong groupId
Merge pull request #12 from nykolaslima/fixing-groupId

fixing wrong groupId
adding onErrorSendBadRequest
Merge pull request #17 from nykolaslima/onErrorSendBadRequest

adding onErrorSendBadRequest
Merge branch 'master' into ok-adding-simple-validator-mock

Conflicts:
	src/main/java/br/com/caelum/vraptor/simplevalidator/SimpleValidator.java