add lint grunt command with github actions for linting and build/publish

.github/workflows/linting.yml

@@ -0,0 +1,20 @@
+name: lint
+on: [push, pull_request]
+jobs:
+  run-lint:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [ '14', '16' ]
+    name: Node ${{ matrix.node }} test
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node }}
+          cache: 'npm'
+      - name: Install dependencies
+        run: npm ci
+      - name: Run lint
+        run: grunt lint

.github/workflows/publishing.yml

@@ -0,0 +1,24 @@
+name: publish
+on:
+ release:
+   types: [created]
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    name: Publish latest release
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: '16.x'
+          cache: 'npm'
+          registry-url: 'https://registry.npmjs.org'
+      - name: Install dependencies
+        run: npm ci
+      - name: Build package
+        run: grunt build
+      - name: Publish package
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

Gruntfile.js

@@ -288,5 +288,8 @@ module.exports = function (grunt) {
   grunt.registerTask('dist', ['build', 'compress', 'copy-docs']);
 
   // Default task.
-  grunt.registerTask('default', ['build-css', 'build-js']);
+  grunt.registerTask('default', 'build');
+
+  // Linting
+  grunt.registerTask('lint', 'eslint');
 };