Switched to GitHub actions

.github/workflows/build.yml

@@ -0,0 +1,36 @@
+name: build
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  build-go:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go: [1.13, 1.16]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go }}
+      - name: Build
+        run: |
+          go mod download
+          go run cmd/download_ui/download_ui.go
+          CGO_ENABLED=0 go build -o /tmp/cayley ./cmd/cayley
+          go run github.com/gobuffalo/packr/v2/packr2
+          git checkout -- ./packrd/dummy.go
+          if [[ $GOVERSION =~ ^go1\.13 ]]; then
+            go get -u golang.org/x/lint/golint && bash lint.sh
+          else
+            # run go vet for other go versions, but do not fail
+            go vet ./... || true
+          fi
+          go test -v ./...