add geth wallet back in

package.json

@@ -15,10 +15,12 @@
     "bitgo": "^2.2.4",
     "body-parser": "^1.15.1",
     "cookie-parser": "^1.4.3",
+    "ethereumjs-tx": "^1.3.0",
     "express": "^4.13.4",
     "express-limiter": "^1.6.0",
     "express-rate-limit": "^2.6.0",
     "got": "^6.6.3",
+    "hdkey": "^0.7.1",
     "helmet": "^3.1.0",
     "lodash": "^4.17.2",
     "mem": "^1.1.0",
@@ -40,6 +42,7 @@
     "socket.io-client": "^1.7.1",
     "twilio": "^2.11.1",
     "uuid": "^3.0.0",
+    "web3": "^0.18.4",
     "winston": "^2.3.0"
   },
   "repository": {