Update breaking change from parsing class declaration in strict mode (as specified in ES6)

backbone/backbone.d.ts

@@ -238,7 +238,7 @@ declare module Backbone {
         initial(n: number): TModel[];
         inject(iterator: (memo: any, element: TModel, index: number) => any, initialMemo: any, context?: any): any;
         isEmpty(object: any): boolean;
-        invoke(methodName: string, arguments?: any[]): any;
+        invoke(methodName: string, args?: any[]): any;
         last(): TModel;
         last(n: number): TModel[];
         lastIndexOf(element: TModel, fromIndex?: number): number;