[Issue #5] Rankings

  - New landing page with ranking presentation
  - Firsts layout changes
  - Fixed features specs to match new navbar login link
[Issue #5] Modified views for links/boxes/favorites

  - New index view for boxes and links
  - New show view for boxes and links
  - Favorites now displays in a modal window
  - Added some new css rules
[Issue 5] Specs

  - Fixed specs to match the new layout design
heroku gemfile
Gemfile revision
mongohq config
heroku gemfile check
gemfilelock
heroku fix
mongohq env modified
removed an invalid option
mongohq options removed
facebook fix
Facebook config
added ssl certificates for heroku omniauth
Added ca-cert for omniauth ssl
fixin convertions of pathname
fixing path conversion
reconfig env-dev variables