Replace Travis with GitHub Actions (#530)

* add github workflows

* delete travis.yml

* minor cleaning in CI config

.github/workflows/main.yml

@@ -0,0 +1,34 @@
+name: main
+
+on:
+  push:
+    branches:
+       - master
+  pull_request:
+    branches:
+       - master
+
+jobs:
+  check:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v2
+
+      - name: Build android library
+        run: ./gradlew :autobahn:build connectedCheck
+
+      - name: Setup Crossbar
+        run: |
+          docker run -d -p 8080:8080 --name crossbar crossbario/crossbar
+          docker run -d --link crossbar -v ${PWD}/demo-gallery/python:/test crossbario/autobahn-python python -u /test/test_component2.py
+
+      - name: Run tests
+        run: docker run --rm -i --link crossbar -v ${PWD}/workspace crossbario/autobahn-java:netty /bin/bash -c "gradle installDist -PbuildPlatform=netty && /workspace/demo-gallery/build/install/demo-gallery/bin/demo-gallery ws://crossbar:8080/ws"