chore!: Normalize repository, dropping node <10.13 support (#118)

Author: phated

.eslintrc

@@ -1,7 +1,6 @@
 {
   "extends": "gulp",
   "rules": {
-    "max-len": [0, 90],
     "max-statements": [1, 50],
     "no-empty": ["error", { "allowEmptyCatch": true }]
   }

.github/workflows/dev.yml

@@ -0,0 +1,75 @@
+name: dev
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - main
+env:
+  CI: true
+
+jobs:
+  prettier:
+    name: Format code
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name == 'push' }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Prettier
+        uses: gulpjs/prettier_action@v3.0
+        with:
+          commit_message: 'chore: Run prettier'
+          prettier_options: '--write .'
+
+  test:
+    name: Tests for Node ${{ matrix.node }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node: [10, 12, 14, 16]
+        os: [ubuntu-latest, windows-latest, macos-latest]
+
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v2
+
+      - name: Set Node.js version
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node }}
+
+      - run: node --version
+      - run: npm --version
+
+      - name: Install npm dependencies
+        run: npm install
+
+      - name: Run lint
+        run: npm run lint
+
+      - name: Run tests
+        run: npm test
+
+      - name: Coveralls
+        uses: coverallsapp/github-action@v1.1.2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          flag-name: ${{matrix.os}}-node-${{ matrix.node }}
+          parallel: true
+
+  coveralls:
+    needs: test
+    name: Finish up
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Coveralls Finished
+        uses: coverallsapp/github-action@v1.1.2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          parallel-finished: true