CI: Switch to GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,51 @@
+on:
+  push:
+  schedule:
+    - cron: '30 3 * * 2'
+
+name: CI
+
+jobs:
+
+  test:
+    name: run tests
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+        rust: [1.36.0, stable]
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+      - name: Build with default features
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+      - name: Build with all features
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --all-features
+      - name: Run tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all-features
+
+  clippy:
+    name: run clippy lints
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+            toolchain: 1.36.0
+            components: clippy
+            override: true
+      - uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-features