Merge pull request #3592 from milkisevil/master

`srcEvent` now uses a union type (as introduced with Typescript 1.4)

hammerjs/hammerjs.d.ts

@@ -3,6 +3,8 @@
 // Definitions by: Philip Bulley <https://github.com/milkisevil/>, Han Lin Yap <https://github.com/codler>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
+/// <reference path="../touch-events/touch-events.d.ts" />
+
 declare var Hammer:HammerStatic;
 
 declare module "Hammer" {
@@ -167,7 +169,7 @@ declare class HammerInput
   center:HammerPoint;
 
   /** Source event object, type TouchEvent, MouseEvent or PointerEvent. */
-  srcEvent:Event;    // TODO: Update to Union Type (TouchEvent | MouseEvent | PointerEvent) if it lands in TS1.4
+  srcEvent:TouchEvent | MouseEvent | PointerEvent;
 
   /** Target that received the event. */
   target:HTMLElement;