Merge pull request #23 from mavin/node-version

Add a node version recommendation to package.json

Author: apparentlymart

package.json

@@ -21,5 +21,8 @@
     "devDependencies": {
         "nodeunit": "*",
         "jshint": "2.1.11"
+    },
+    "engines" : { 
+        "node" : "~0.10.x" 
     }
 }