Issue #27: Add github actions workflow

.coveralls.yml

@@ -1,3 +1 @@
-service_name: travis-ci
 repo_token: nBvOXbcbM0lC1gy3CxgWxWmMt887zQWug
-

.github/workflows/ci.yml

@@ -0,0 +1,54 @@
+on: push
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        os: [ubuntu-18.04, macos-latest, windows-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.6
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install tox
+
+      - name: Run tox
+        run: |
+          tox
+
+      - name: Run coveralls
+        run: |
+          pip install coveralls pyyaml
+          coveralls
+
+  deploy:
+    runs-on: ubuntu-18.04
+    needs: test
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/checkout@master
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.6
+
+      - name: Install dependencies
+        run: python -m pip install wheel twine setuptools
+
+      - name: Build wheel
+        run: |
+          python setup.py sdist
+
+      - name: Publish package if tagged release
+        if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}