Bean Validation

As of 0.10.6 (MIGR-130, JAXB classes may contain Bean Validation 1.1 annotations, like @NotNull, @org.hibernate.validator.constraints.NotBlank, etc.
The implementation used is Hibernate Validator 5.

Validation is currently performed ad-hoc by the migrators. The jira to change that to systemic validation is
MIGR-63 App structure: Put AS 5 data validation to a specific phase

MIGR-130 Allow using BeanValidation on JAXB classes (over HibernateValidator)