added resources for users, partially implemented views and controllers
added factory girl gem
added show page with dynamic content
added a gravatar (and helper method to fetch it) to user profile page
wrote tests for new user form page
added styling for forms
added new user form using form_for helper
added controller action of create for users_controller
added error messages for form to a partial and added custom scss to clearly show a user their error in form
redirect users to profile page upon successful creation
Merge pull request #1 from chriswright47/sign_up

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