Fix for Universal Angular 2 support

Author: PickleyD

src/PopoverContent.ts

@@ -114,9 +114,9 @@ export class PopoverContent implements AfterViewInit, OnDestroy {
     listenMouseFunc: any;
     ngAfterViewInit(): void {
         if (this.closeOnClickOutside)
-            this.listenClickFunc = this.renderer.listenGlobal("document", "mousedown", () => this.onDocumentMouseDown);           
+            this.listenClickFunc = this.renderer.listenGlobal("document", "mousedown", (event: any) => this.onDocumentMouseDown(event));               
         if (this.closeOnMouseOutside)
-            this.listenMouseFunc = this.renderer.listenGlobal("document", "mouseover", () => this.onDocumentMouseDown);  
+            this.listenMouseFunc = this.renderer.listenGlobal("document", "mouseover", (event: any) => this.onDocumentMouseDown(event));  
 
         this.show();
         this.cdr.detectChanges();