slickgrid: fixed definitions and tests

slickgrid/SlickGrid-tests.ts

@@ -1,8 +1,6 @@
 /// <reference path="../jquery/jquery.d.ts" />
 /// <reference path="SlickGrid.d.ts" />
 
-declare var $: any;
-
 interface MyData extends Slick.SlickData {
 	title: string;
 	duration: string;

slickgrid/SlickGrid.d.ts

@@ -1320,7 +1320,7 @@ declare module Slick {
 	}
 
 	// todo: merge with existing column definition
-	export interface Column {
+	export interface Column<T extends SlickData> {
 		sortCol?: string;
 		sortAsc?: boolean;
 	}