nameservice: add missing dependencies

Change-Id: I5d46c8826c3d32d04165131472805ddfabc6fd19

index.js

@@ -18,7 +18,6 @@
  */
 'use strict';
 
-var connect = require('connect');
 var express = require('express');
 var bodyParser = require('body-parser');
 var BigNumber = require('bignumber.js');

package.json

@@ -7,6 +7,9 @@
   "author": "Adrien Béraud <adrien.beraud@savoirfairelinux.com>",
   "license": "GPL-3.0",
   "dependencies": {
-    "web3": ">=0.15"
+    "web3"        : ">=0.15" ,
+    "express"     : ">=4.1.0",
+    "body-parser" : ">=1.8.1",
+    "bignumber.js": ">=2.0.0"
   }
 }
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