add travis config

.travis.yml

@@ -0,0 +1,18 @@
+# Use the (faster) container-based infrastructure, see also
+# http://docs.travis-ci.com/user/workers/container-based-infrastructure/
+sudo: false
+dist: trusty
+services:
+  - docker
+
+language: go
+go:
+  - "1.10"
+
+script:
+  # Check whether files are syntactically correct.
+  - "gofmt -l $(find . -name '*.go' | tr '\\n' ' ') >/dev/null"
+  # Check whether files were not gofmt'ed.
+  - "gosrc=$(find . -name '*.go' | tr '\\n' ' '); [ $(gofmt -l $gosrc 2>&- | wc -l) -eq 0 ] || (echo 'gofmt was not run on these files:'; gofmt -l $gosrc 2>&-; false)"
+  - go tool vet .
+  - go test ./...