chancancode/json_expressions — pull request #12 by pda (2013-02-07 04:36:19+00:00)
Title: Require "rspec/core" not "rspec".

There are cases where rspec-core is present but rspec is not.

The rspec-rails gem as of 2.12.0 does not depend on "rspec", but instead
lists "rspec-core" and other rspec gems as dependencies.

Without this change, json_expressions crashes newer Rails + Rspec projects
with a LoadError.