Implemented a bootstrap theme. Added stuff to landing page. Navbar is now fixed at the top of the page. Navbar elements were rearranged to present a sleek look. Setup page features fancier icons. Errors during server side input validation will be sent to the user to be displayed as bootstrap alerts. Inventory and Playlist are now initialised upon first visit to setup page instead of during the post request. Person model now has a country property that will be used to restrict address geocoding results.