nesquena/rabl — pull request #215 by databyte (2012-04-04 20:26:19+00:00)
Title: support Ruby 1.8 by not using parameters

Can't use arity because it's -2 for both 3.1 and 3.2 since
the method signatures are compatible even though
3.1 has 4 parameters and 3.2 has 5 parameters which
isn't what we were testing for.

This will have to be checked with Rails 4.0 but should work.

Solves Issue 214