Adds a small patch to Rails 3.1 compat
Adds a small patch to Rails 3.1 compat

infertux/rabl,infertux/rabl,zoyi/rabl,nesquena/rabl,infertux/rabl,sideci-sample/sideci-sample-rabl,bholzer/rabl,Jyaasa/rabl,Jyaasa/rabl,nesquena/rabl,nesquena/rabl,Jyaasa/rabl,bholzer/rabl,sideci-sample/sideci-sample-rabl,zoyi/rabl,zoyi/rabl,bholzer/rabl