rspec/rspec-expectations — pull request #373 by myronmarston (2013-11-29 21:00:13+00:00)
Title: Change matcher protocol

This is a first pass for #270. I'm pretty happy with it so far but there's still `RSpec::Matcher.last_should` to update. if this get s LGTM from another rspec core member I'll go ahead and merge w/o that; otherwise I'll add that to this PR.