chore(typings): add router_spec to test.typings

Closes angular#4651

Author: alexeagle

gulpfile.js

@@ -800,7 +800,7 @@ gulp.task('!pre.test.typings.layoutNodeModule', ['build.js.cjs'], function() {
 });
 gulp.task('!pre.test.typings.copyTypingsSpec', function() {
   return gulp
-    .src(['typing_spec/basic_spec.ts'], {base: 'typing_spec'})
+    .src(['typing_spec/*.ts'], {base: 'typing_spec'})
     .pipe(gulp.dest(path.join(tmpdir)));
 });
 gulp.task('test.typings', [

typing_spec/router_spec.ts

@@ -1,6 +1,3 @@
-///<reference path="../dist/docs/typings/angular2/angular2.d.ts"/>
-///<reference path="../dist/docs/typings/angular2/router.d.ts"/>
-
 import {Component, bootstrap, View} from 'angular2/angular2';
 import {RouteConfig, ROUTER_DIRECTIVES, ROUTER_PROVIDERS} from 'angular2/router';