Add support for RequireJS

Fixes #1 and #18.

generators/app/templates/_bower.json

@@ -3,7 +3,7 @@
   "private": true,
   "dependencies": {
     "chai": "~2.3.0",
-    "mocha": "~2.2.4"
-  },
-  "devDependencies": {}
+    "mocha": "~2.2.4"<% if (options.rjs) { %>,
+    "requirejs": "~2.1.10"<% } %>
+  }
 }

generators/app/templates/index.html

@@ -14,12 +14,21 @@
     var assert = chai.assert;
     var expect = chai.expect;
     var should = chai.should();
-  </script>
+  </script><% if (options.rjs) { %>
+  <script src="bower_components/requirejs/require.js"></script>
+  <script>
+    require([
+      // include spec files here
+      'spec/test'
+    ], function () {
+      mocha.run();
+    });
+  </script><% } else { %>
   <!-- bower:js -->
   <!-- endbower -->
   <!-- include source files here... -->
   <!-- include spec files here... -->
   <script src="spec/test.js"></script>
-  <script>mocha.run();</script>
+  <script>mocha.run();</script><% } %>
 </body>
 </html>