merged from development
removed github from the login options, changed the text for google sign in and added some potential background images to the assets/images folder. All functionality of Devise and Oauth is working at the moment, just need to make appropriate fields mandatory
minor changes made to the format of the login inputs. Switching back to development branch
Added username to user profile. When user logs in, they now go to portfolio index page. This shows all portfolios at the moment, not just those for the auth'd user