rails/rails — pull request #5311 by guilleiguaran (2012-03-07 00:24:06+00:00)
Title: Adding param to ActionController::Metal, param is a method that can handle with nested params hashes

For instance, param("user.id") is the same as params[:user].is_a?(Hash) && params[:user][:id]

Made by @josevalim for [strobe-rails-ext](https://github.com/strobecorp/strobe-rails-ext)

cc @spastorino @wycats