API no longer compatible with should.js 0.4.x

[jgonera]

There are some API changes in should.js 0.4.x (https://github.com/visionmedia/should.js/commits/master).

[logicalparadox]

Release 0.1.2 is now compatible with should.js (0.4.x) through 99a305190c9bd085ef9d228414b0d975f7517f5d. This includes headers, statusCodes, html/json content types.

Please note the following caveats:

.include() / .keys()

• should.js warns users to switch from contain to include, and keys doesn't have a subselection modifier
• chai include is compatible, but contain was refactored as the subselection modifier for keys.

expect({ foo: 1 }).to.have.keys('foo');
expect({ foo: 1, bar: 2 }).to.contain.keys('foo');

.throw()

• chai allows you to pass (optional) specific type of error to match expectations. behaves the same if error constructor is passed.

var goodFn = function () { 1==1; }
  , badFn = function () { throw new Error('testing'); }
  , refErrFn = function () { throw new ReferenceError(); };

// all of the following pass
expect(goodFn).to.not.throw();
expect(goodFn).to.not.throw(Error);
expect(badFn).to.throw();
expect(badFn).to.throw(Error);
expect(badFn).to.not.throw(ReferenceError);
expect(refErrFn).to.throw();
expect(refErrFn).to.throw(ReferenceError);
expect(refErrFn).to.not.throw(Error);
expect(refErrFn).to.not.throw(TypeError);

That should cover it. Let me know if there is something I missed.