Added validation tests for user sign in.
Styled flash messages.
Debugged by adding container to styled flash messages.
Streamlined flash message script with factoring.
Customized route urls.
Added user authentication and tests to statuses controller.
Added status validation and testing.
Generated profile controller.
Fleshed out profiles controller and tests, and added profile route.
Debugged all statuses showing in profile page and tested new profile route.
Added gravatars to index page.