WIP: green; coreMatchers are now matcher factories
WIP: green, matchers now added to Expectation prototype, ExpectationFactory builds the 'expect' which is now a nested expectation
WIP: green

Moved equals, contains and buildFailureMessage into matchersUtil and testing them in isolation
Now injecting matchersUtil into matchers when wrapped so that matchers can use the utils
Specs for toEqual and toContain now just test that they delegate
Removed custom messages for toEqual - unneeded
WIP: green; Old Matchers and Matchers specs are dead; Env is now using new Expectation and Matchers; STILL NOT SELF TESTING