add travis build-status

correctly test and fix self fulfillment

promise.resolve(promise) === fulfillment

Fix infinite recursion with deep self fulfilling promises

WIP RSVP#wrap -> RSVP#resolve (A+ compliant)

Merge branch 'build-using-es6-module-transpiler' of https://github.com/eventualbuddha/rsvp.js into eventualbuddha-build-using-es6-module-transpiler

Conflicts:
	browser/rsvp.min.js

Merge branch 'promise-constructor' of https://github.com/domenic/rsvp.js into domenic-promise-constructor

Converts functions that use the Node.js-style callbacks as their last parameter into promise-returning functions. Such functions also accept promises, in order to allow cool composition (see tests for example).

Reference Promises/A+ instead of Promises/A.