Updating js plugins

public/plugins/mustache/.github/workflows/verify.yml

@@ -0,0 +1,82 @@
+name: Verify changes
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14.x
+      - run: npm install
+      - run: npm run test-lint
+
+  tests:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x, 15.x]
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: npm install and test
+        run: |
+          npm install
+          npm run test-unit
+
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14.x
+      - name: npm install and build
+        run: |
+          npm install
+          npm run build
+      - name: Store build-output for later
+        uses: actions/upload-artifact@v2
+        with:
+          name: build-output
+          path: |
+            mustache.js
+            mustache.mjs
+
+  tests-on-legacy:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [0.10.x, 0.12.x, 4.x, 6.x, 8.x]
+
+    needs: build
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Get build-output from build step
+        uses: actions/download-artifact@v2
+        with:
+          name: build-output
+      - name: npm install and test
+        run: |
+          npm install mocha@3 chai@3
+          npm run test-unit