Grunt: Update to testswarm@0.2.1, fixes timeout handling

Author: jzaefferer

package.json

@@ -32,7 +32,7 @@
     "grunt-html": "0.1.1",
     "request": "2.9.153",
     "rimraf": "2.0.1",
-    "testswarm": "0.2.0"
+    "testswarm": "0.2.1"
   },
   "keywords": []
 }