Added the logged_in? helper.
Updated Sass files.
Show UserCP and Logout links if user is logged in.
Added error list view.
Added rack-flash3.
Added logout route.
Added success flash message to layout.
Added main CSS file and Bootstrap JS file.
Added jQuery and Bootstrap files to layout.
Mark fields with errors on register form.
Tweaks to CSS.
Set title for 404 page.
Display project description on project listing page.
Removed margin from project name on project listing page.
Tweaked CSS for navbar.
Project navbar added.