Removed support for NodeJS 8

Author: Dekel Barzilay

.travis.yml

@@ -2,6 +2,5 @@ language: node_js
 node_js:
   - '12'
   - '10'
-  - '8'
 sudo: false
 after_success: npm run coverage

package.json

@@ -27,7 +27,7 @@
     "url": "https://github.com/dekelev/feathers-http-distributed/issues"
   },
   "engines": {
-    "node": ">= 8"
+    "node": ">= 10"
   },
   "scripts": {
     "publish": "git push origin --tags && npm run changelog && git push origin",