[CHORE] include superagent, vault-test

package.json

@@ -18,7 +18,8 @@
     "async": "~0.8.0",
     "ws": "~0.4.31",
     "extend": "~1.2.1",
-    "lru-cache": "~2.5.0"
+    "lru-cache": "~2.5.0",
+    "superagent": "^0.18.0"
   },
   "devDependencies": {
     "mocha": "~1.14.0",

test/vault-test.js

@@ -0,0 +1 @@
+var assert  = require('assert');