Add a standard .travis.yml file

Author: markpeek

.travis.yml

@@ -1,13 +1,31 @@
+dist: trusty
+sudo: required
+services:
+- docker
 language: go
-
 go:
-  - 1.11.x
-
+- "1.11.x"
 env:
   - GO111MODULE=on
+    GOFLAGS=-mod=vendor
 
-before_install:
-  - go get golang.org/x/lint/golint
+install:
+# This script is used by the Travis build to install a cookie for
+# go.googlesource.com so rate limits are higher when using `go get` to fetch
+# packages that live there.
+# See: https://github.com/golang/go/issues/12933
+- bash scripts/gogetcookie.sh
+- make tools
 
 script:
-  - make check race release
+- make lint
+- make test
+- make website-test
+
+branches:
+  only:
+  - master
+matrix:
+  fast_finish: true
+  allow_failures:
+  - go: tip