Update rack dependency to version 1.3.0
Update rack dependency to version 1.3.0

arrogantgamer/ludum_dare_28,maxogden/ciccflip,ksmetana/rails-app-twitter-test,sferik/sign-in-with-twitter,theonlyjames/garbage,sferik/sign-in-with-twitter,sferik/sign-in-with-twitter,ksmetana/rails-app-twitter-test,maxogden/ciccflip,theonlyjames/garbage,arrogantgamer/ludum_dare_28