chore: Upgrade to node 10 (#1731)

chore: Upgrade to node 10

.babelrc

@@ -1,7 +1,7 @@
 {
   "presets": [
     ["@babel/env", {
-      "targets": {"node": "8"}
+      "targets": {"node": "10"}
     }],
     "@babel/flow"
   ],

.travis.yml

@@ -6,29 +6,29 @@ os:
 - windows
 
 node_js:
-- '8'
 - '10'
+- '12'
 
 # Skip node_js 6 on travis windows workers (as it often fails because
 # travis fails to init the node_js 6 environment).
 matrix:
   fast_finish: true
   exclude:
-  - node_js: '8'
+  - node_js: '10'
     os: windows
 
 jobs:
   include:
   - stage: npm audit and lint github PR title
     ## Keep this in sync with the last version listed in the node_js property.
-    node_js: '10'
+    node_js: '12'
     os: linux
     script:
     - npm run audit-deps
     - npm run travis-pr-title-lint
   - stage: deploy on npm
     ## Keep this in sync with the last version listed in the node_js property.
-    node_js: '10'
+    node_js: '12'
     os: linux
     script: echo "Deploying to npm..."
     ## Make sure we have a production build.

README.md

@@ -73,8 +73,8 @@ version on the command line with this:
 ## Installation from source
 
 You'll need:
-* [Node.js](https://nodejs.org/en/), 8.0.0 or higher
-* [npm](https://www.npmjs.com/), 5.0.0 or higher is recommended
+* [Node.js](https://nodejs.org/en/), 10.0.0 or higher
+* [npm](https://www.npmjs.com/), 5.6.0 or higher is recommended
 
 Optionally, you may like:
 * [nvm](https://github.com/creationix/nvm), which helps manage node versions

package.json

@@ -4,8 +4,8 @@
   "description": "A command line tool to help build, run, and test web extensions",
   "main": "dist/web-ext.js",
   "engines": {
-    "node": ">=8.0.0",
-    "npm": ">=5.0.0"
+    "node": ">=10.0.0",
+    "npm": ">=5.6.0"
   },
   "engine-strict": true,
   "bin": {