Add ngMessages functionality for registration page

ngMessages currently functional for email, password, and password
confirmation inputs
More ng-messages
Minor formatting changes

Fixed indentation
RegistrationsController.interacted
Tests for password validation
Fixed issues for Travis
Fixes for Travis
Fixed Syntax Error in RegistrationsController

One time?
Rename userForm and fix some indentation
CSS for Error Messages
Add angular-validate-in-set module
Add animate.css
Ensure password format is validated initially
Rework registration form, controller, and styles
Extract form-simple styles
Minor cleanup