message: style(FromEventObservable): fix typo Emmitter => Emitter
diff: @@ -7,11 +7,11 @@ import { Subscriber } from '../Subscriber';
  const toString: Function = Object.prototype.toString;
  -export type NodeStyleEventEmmitter = {
  +export type NodeStyleEventEmitter = {
  addListener: (eventName: string, handler: Function) => void;
  removeListener: (eventName: string, handler: Function) => void;
  };
  -function isNodeStyleEventEmmitter(sourceObj: any): sourceObj is NodeStyleEventEmmitter {
  +function isNodeStyleEventEmitter(sourceObj: any): sourceObj is NodeStyleEventEmitter {
  return !!sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';
  }
  @@ -35,7 +35,7 @@ function isEventTarget(sourceObj: any): sourceObj is EventTarget {
  return !!sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';
  }
  -export type EventTargetLike = EventTarget | NodeStyleEventEmmitter | JQueryStyleEventEmitter | NodeList | HTMLCollection;
  +export type EventTargetLike = EventTarget | NodeStyleEventEmitter | JQueryStyleEventEmitter | NodeList | HTMLCollection;
  export type EventListenerOptions = {
  capture?: boolean;
  @@ -135,7 +135,7 @@ export class FromEventObservable<T> extends Observable<T> {
  const source = sourceObj;
  sourceObj.on(eventName, handler);
  unsubscribe = () => source.off(eventName, handler);
  - } else if (isNodeStyleEventEmmitter(sourceObj)) {
  + } else if (isNodeStyleEventEmitter(sourceObj)) {
  const source = sourceObj;
  sourceObj.addListener(eventName, handler);
  unsubscribe = () => source.removeListener(eventName, handler);
  