Changed bean and spring validation for registration form, added email-field from entity 'users_data' to entity 'users'.
ValidationMessages.properties with msg for bean validation.
Merge branch 'master' of https://github.com/kverchi/InspireMe

Conflicts:
	src/main/java/com/kverchi/service/impl/UserServiceImpl.java
JavaMail. Sending a confirmation message after registration.