Updated intro.js definition to reflect v2.0

(1) Updates for v2.0, primarily hint-related items
(2) Updates for the IntroJs Factory interface / constructor

intro.js/intro.js.d.ts

@@ -1,4 +1,4 @@
-// Type definitions for intro.js 1.1.1
+// Type definitions for intro.js 2.0
 // Project: https://github.com/usablica/intro.js
 // Definitions by: Maxime Fabre <https://github.com/anahkiasen/>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
@@ -29,12 +29,15 @@ declare module IntroJs {
         overlayOpacity?: number;
         positionPrecedence?: string[];
         disableInteraction?: boolean;
+        hintPosition: string;
+        hintButtonLabel: string;
         steps: Step[];
     }
 
     interface IntroJs {
         start(): IntroJs;
         exit(): IntroJs;
+        clone(): IntroJs;
 
         goToStep(step: number): IntroJs;
         nextStep(): IntroJs;
@@ -48,12 +51,20 @@ declare module IntroJs {
         onexit(callback: Function): IntroJs;
         onbeforechange(callback: (element: HTMLElement) => any): IntroJs;
         onafterchange(callback: (element: HTMLElement) => any): IntroJs;
-        onchange(callback: Function): IntroJs;
+        onchange(callback: (element: HTMLElement) => any): IntroJs;
         oncomplete(callback: Function): IntroJs;
+        
+        addHints(): IntroJs;
+        
+        onhintsadded(callback: Function): IntroJs;
+        onhintclick(callback: (hintElement: HTMLElement, item: Step, stepId: number) => any): IntroJs;
+        onhintclose(callback: (stepId: number) => any): IntroJs;
     }
 
     interface Factory {
-        (element?: string): IntroJs;
+        (): IntroJs;
+        (element: HTMLElement): IntroJs;
+        (querySelector: string): IntroJs;
     }
 }