Create Articles table
Article model validates URL format as well as presence of URL and title
Articles has an index, from which they can either log in or create an account
Big nondescriptive commit

*added votes same way as like button from polymorphic lab
*deleted votes because that didn't work
*added bootstrap
*still don't really know how to use it, but I managed to add a nav bar!
*it doesn't look right though
(almost) finish hacker news