add local version of typings

Author: ShMcK

src/typings.d.ts

@@ -1,4 +1,4 @@
-/// <reference path="../node_modules/core-coderoad/src/typings/index.d.ts" />
+/// <reference path="./typings/index.d.ts" />
 // load typings from core-coderoad
 // this requires that the module be declared first
 declare module 'core-coderoad';

src/typings/assertion-error/assertion-error.d.ts

@@ -0,0 +1,15 @@
+// Type definitions for assertion-error 1.0.0
+// Project: https://github.com/chaijs/assertion-error
+// Definitions by: Bart van der Schoor <https://github.com/Bartvds>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module 'assertion-error' {
+	class AssertionError implements Error {
+		constructor(message: string, props?: any, ssf?: Function);
+		name: string;
+		message: string;
+		showDiff: boolean;
+		stack: string;
+	}
+	export = AssertionError;
+}