Add some more info to package.json

Author: briankircho

package.json

@@ -17,5 +17,19 @@
     "async": "~0.1.22",
     "should": "~1.0.0",
     "underscore": "~1.3.3"
-  }
+  },
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "keywords": [
+    "mongoose",
+    "materialized",
+    "path",
+    "tree",
+    "mongodb"
+  ],
+  "license": "BSD"
 }