Update multi_json dependency to version 1.6.1
Update multi_json dependency to version 1.6.1

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