[sec] update 'ws' dependency as a there is a security issue.

Created by: M5oul

There is a security issue with 'ws' module
Upgrade ws dependency to 1.1.5 which fix it.

---

Concerning migrating it to last versions 2 and 3, here is changelogs:

• https://github.com/websockets/ws/releases/tag/2.0.0
• https://github.com/websockets/ws/releases/tag/3.0.0

We could update it to 3.3.1. greping the code, ws.open and ws.send methods are used.

package.json

@@ -101,7 +101,7 @@
     "unzip2": "0.2.5",
     "winston": "2.3.1",
     "wotb": "0.6.x",
-    "ws": "1.1.1"
+    "ws": "1.1.5"
   },
   "devDependencies": {
     "@types/mocha": "^2.2.41",