configure continuous integration

exclude certificate tests until figuring out a good way to do that.

ref #1
closes #2

.travis.yml

@@ -0,0 +1,22 @@
+sudo: false
+language: go
+
+go:
+   - tip
+
+before_script:
+  - go get -u github.com/golang/lint/golint
+
+script:
+  - go test -v --race $(go list ./... | grep -v '/certificate')
+
+after_script:
+  - test -z "$(gofmt -s -l -w . | tee /dev/stderr)"
+  - test -z "$(golint ./...     | tee /dev/stderr)"
+  - go vet ./...
+
+os:
+  - linux
+
+notifications:
+  email: false

README.md

@@ -4,7 +4,7 @@ Apple Push Notification (APN) Provider for Go 1.6 and HTTP/2.
 
 This is an _alpha_ release with some missing features.
 
-[![GoDoc](https://godoc.org/github.com/RobotsAndPencils/buford?status.svg)](https://godoc.org/github.com/RobotsAndPencils/buford)
+[![GoDoc](https://godoc.org/github.com/RobotsAndPencils/buford?status.svg)](https://godoc.org/github.com/RobotsAndPencils/buford) [![Build Status](https://travis-ci.org/RobotsAndPencils/buford.svg?branch=ci)](https://travis-ci.org/RobotsAndPencils/buford)
 
 ### Documentation