Bump async and nodeunit versions.

Author: Michael Sanford

package.json

@@ -52,8 +52,8 @@
     "log4js": "0.x"
   },
   "devDependencies": {
-    "async": "^0.9.0",
-    "nodeunit": "^0.8.6"
+    "async": "^2.1.2",
+    "nodeunit": "^0.10.2"
   },
   "engines": {
     "engine": "node >= 0.4.1"