test: use a fork of uws

uws is no longer maintained, and does not support Node.js >= 10.

We could also try to support uWebSockets.js, but it does not have the same API as ws.

Source: https://github.com/mmdevries/uws
Related: #583

Author: darrachequesne

.travis.yml

@@ -2,7 +2,8 @@ sudo: false
 language: node_js
 node_js:
   - "8"
-  - "9"
+  - "10"
+  - "12"
 git:
   depth: 1
 notifications:

package-lock.json

@@ -42,7 +42,7 @@
     "prettier": "^1.19.1",
     "s": "0.1.1",
     "superagent": "^3.8.1",
-    "uws": "~9.14.0"
+    "uws": "github:mmdevries/uws#2.4.0"
   },
   "scripts": {
     "lint": "eslint lib/ test/ *.js",