Adds sqlite gem for development.
Implements basic index page.
Implements bootstrap js and adds homepage content.
Adds User model for Steam OpenID login.
Changes steam_id column to decimal to handle 64-bit unsigned integers.
Implements OpenID query and response handling.
Mostly implements sessions. NoMethodError complaints when calling public OpenID::Consumer method.
Deletes session views since they're never used.
Fixes OpenID class errors.
Fixes user lookup errors.
Resolves merge conflict.