chore(package): update ws to version 6.1.2

Author: greenkeeper[bot]

package.json

@@ -41,7 +41,7 @@
     "string2compact": "^1.1.1",
     "uniq": "^1.0.1",
     "unordered-array-remove": "^1.0.2",
-    "ws": "^6.0.0"
+    "ws": "^6.1.2"
   },
   "devDependencies": {
     "electron-webrtc": "^0.3.0",