Put jshint configuration in tests/.jshintrc instead of comment headers

Author: Amiel Martin

tests/.jshintrc

@@ -21,9 +21,13 @@
     "andThen",
     "currentURL",
     "currentPath",
-    "currentRouteName"
+    "currentRouteName",
+    "describe",
+    "it",
+    "before",
+    "beforeEach"
   ],
-  "node": false,
+  "node": true,
   "browser": false,
   "boss": true,
   "curly": false,

tests/unit/index-nodetest.js

@@ -1,5 +1,3 @@
-/* jslint node: true */
-/* globals describe, before, beforeEach, it */
 'use strict';
 
 var fs     = require('fs');

tests/unit/lib/utilities/extract-index-config-nodetest.js

@@ -1,5 +1,3 @@
-/* jslint node: true */
-/* globals describe, before, it */
 'use strict';
 
 var assert = require('ember-cli/tests/helpers/assert');