Replace Travis CI with Github Actions.

.github/workflows/build.yml

@@ -0,0 +1,47 @@
+name: Tests
+'on':
+  push:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-18.04
+    name: Node ${{ matrix.node }} 
+    strategy: 
+      matrix:
+        node:
+          - '6'
+          - '8'
+          - '10'
+          - '12'
+          - '14'
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+      - run: npm install
+      - run: npm test
+
+  test-targets:
+    runs-on: ubuntu-18.04
+    name: ${{ matrix.targets.name }} 
+    strategy:
+      matrix:
+        targets:
+          - {target: 'test-jest', name: 'Jest'}
+          - {target: 'test-jasmine', name: 'Jasmine'}
+          - {target: 'test-coverage', name: 'Coverage'}
+          - {target: 'test-plugins', name: 'Plugins'}
+          - {target: 'test-browserstack-ie11', name: 'Browser - IE11'}
+          - {target: 'test-deno', name: 'Deno'}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          node-version: '12'
+      - run: npm install
+      - run: npm run ${{ matrix.targets.target }}
+