Replace travis config with gh actions

Author: jonathanlloyd

.github/workflows/ci.yml

@@ -0,0 +1,32 @@
+name: Python package
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        python-version: [2.7, 3.6]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -r dev_requirements.txt
+          python -m pip install -r requirements.txt
+      - name: Lint Code
+        run: python -m pylint ./pusher_push_notifications/*.py
+      - name: Lint Docs
+        run: python setup.py checkdocs
+      - name: Test
+        run: python -m nose -s --with-coverage && codecov