Restructure to support old versions (#13811)

* Restructure to support old versions

* Fix tests

scroller/easyscroller.d.ts

@@ -1,15 +0,0 @@
-// Type definitions for Zynga EasyScroller
-// Project: https://github.com/zynga/scroller
-// Definitions by: Boris Yankov <https://github.com/borisyankov>
-// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-
-
-/// <reference path="scroller.d.ts"/>
-
-declare class EasyScroller  {
-    constructor (content: any, options: ScrollerOptions);
-
-    render(): void;
-    reflow(): void;
-    bindEvents(): void;
-}

scroller/index.d.ts

@@ -21,7 +21,7 @@ interface ScrollerOptions {
 
 interface ScrollValues {
     left: number;
-    top: number;    
+    top: number;
 }
 
 interface ScrollValuesWithZoom extends ScrollValues {
@@ -48,3 +48,11 @@ declare class Scroller {
     doTouchMove(touches: any[], timeStamp: number, scale?: number): void;
     doTouchEnd(timeStamp: number): void;
 }
+
+declare class EasyScroller  {
+    constructor (content: any, options: ScrollerOptions);
+
+    render(): void;
+    reflow(): void;
+    bindEvents(): void;
+}