run node tests in GitHub instead of travis

.github/workflows/node.yml

@@ -0,0 +1,23 @@
+name: Node.js Tests
+
+on: [pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm ci
+    - run: npm test ci
+      env:
+        CI: true

.travis.yml

@@ -1,29 +0,0 @@
-language: node_js
-dist: trusty
-addons:
-  chrome: stable
-notifications:
-  email:
-    on_success: never
-    on_failure: change
-
-jobs:
-  include:
-    - node_js:
-        - "10"
-      before_install:
-        - git submodule update --init --recursive
-        - git fetch origin master:refs/remotes/origin/master --depth=1
-      install:
-        - npm ci # clean install
-      script:
-        - npm run ci # run tests
-    - node_js:
-        - "12"
-      before_install:
-        - git submodule update --init --recursive
-        - git fetch origin master:refs/remotes/origin/master --depth=1
-      install:
-        - npm ci # clean install
-      script:
-        - npm run ci # run tests