Merge pull request #16 from crossbrowsertesting/upgrade_ws

upgrade ws to 6.0.0

Author: Warner Johnson

package-lock.json

@@ -13,7 +13,7 @@
     "request": "2.87.0",
     "serve-index": "1.7.2",
     "serve-static": "1.10.0",
-    "ws": "3.3.2",
+    "ws": "6.0.0",
     "yargs": "12.0.1"
   },
   "devDependencies": {},