New support with Promises for RxJS

promises-observables.js

// Observable to Promise
var promise = Rx.Observable.return(42).toPromise(RSVP.Promise);
promise.then(console.log.bind(console));
// => 42

// Using config instead of argument
Rx.config.Promise = RSVP.Promise;
var promise = Rx.Observable.return(42).toPromise();
promise.then(console.log.bind(console));
// => 42

// Converting Promise to Observable
var observable = RSVP.Promise.resolve(42);
observable.subscribe(console.log.bind(console));
// => 42

// Using flatMap/selectMany with a promise
var observable = Rx.Observable.return(42)
  .flatMap(RSVP.Promise.resolve(56));
observable.subscribe(console.log.bind(console));

// Using flatMap/selectMany with a promise inside a function
var observable = Rx.Observable.return(42)
  .flatMap(function (x, i) { return RSVP.Promise.resolve(x + 1); });
observable.subscribe(console.log.bind(console));
// => 43

// Using flatMap/selectMany with a promise inside a function with a result selector
var observable = Rx.Observable.return(42)
  .flatMap(
    function (x, i) { return RSVP.Promise.resolve(x + 1); },
    function (x, y, i) { return { fst: x + i, snd: y }});
observable.subscribe(console.log.bind(console));
// => { fst: 42, snd: 43 }