Add a full_title helper
Install bootstrap-sass, add styling to the static pages, clean up the layout by extracting some code into partials (_header, _footer, _shim), add a test for the application-wide full_title helper, refactor the tests using the before hook and subject
Add Users controller (with a new action), add tests for the signup page (for the title and h1 tags), add a route for the signup page in order to pass the tests