Added email validators
Merge branch 'master' into feature/433/email-validation
Merge branch 'master' into feature/433/email-validation
Added the validation for partners too
Merge pull request #433 from ZeusWPI/feature/433/email-validation

Add e-mail validator en change field name
Merge branch 'master' into fix/436/unique-registration-name-and-email

Conflicts:
	app/models/registration.rb