4.0.0

This release is a complete rewrite of Chai as Promised's internals for better compatibility, speed, and robustness. If Chai as Promised has seemed weirdly broken in the past, it's probably fixed now.

Notable user-facing changes and fixes include:

• You can now use multiple asserters on a single promise without problems, e.g. promise.should.have.property("foo").that.equals("bar").
• When using the assert interfaces, rejected promises now pass through any assertion messages in addition to the rejection reason.
• Removed .rejected.with syntax, in favor of a new .rejectedWith. Juggling the state between the two separate asserters (.rejected and .with) was very error-prone and didn't always work right.
• Removed .broken alias for .rejected; nobody says that anymore.
• The test to disallow jQuery “promises” has been tightened to produce less false positives. In particular, promise-stream hybrids with both .pipe and .then methods should work fine, unless they duplicate the entire jQuery-“promise” interface.
• Fixed .rejectedWith on promises whose reasons are not Error instances (even though you should always reject with Error instances).
• Fixed using .rejectedWith plus .notify on asynchronously-rejected promises.