text:     // Aliases
      var Observable = Rx.Observable,
      	observableProto = Observable.prototype,
        observableFromPromise = Observable.fromPromise,
        observableThrow = Observable.throwException,
        AnonymousObservable = Rx.AnonymousObservable,
        AsyncSubject = Rx.AsyncSubject,
        disposableCreate = Rx.Disposable.create,
        CompositeDisposable= Rx.CompositeDisposable,
        immediateScheduler = Rx.Scheduler.immediate,
        timeoutScheduler = Rx.Scheduler.timeout,
        slice = Array.prototype.slice;
  