removed parsley gem and added parsley file to vendor folder
added ymail.com domain to mailcheck
decreased font size of validations message on client side validations
removed commented out client side validation gems
changed border color for error fields with client side validations
moved parsley local file to vendor folder
commented out submit disabling functionality
replaced parsley with parsley.min lib and added parsley.remote.min lib
added method to find user by username or email
added username check controller and index action
added route to username check index
added remote validations for uniqueness on email and username field for user form
added username search method to user model
removed remote validation for email
changed uniqueness validation message for user model
changed email uniqueness validation message in locale
added form errors helper method