Merge pull request #952 from dvrkps/patch-1

travis: update go versions

.travis.yml

@@ -1,7 +1,8 @@
 language: go
 go:
-- 1.7.3
-- 1.8
+- 1.7.x
+- 1.8.x
+- 1.9.x
 
 env:
   global:

message_test.go

@@ -107,7 +107,7 @@ func TestMessageEncoding(t *testing.T) {
 
 	message.Value = []byte{}
 	message.Codec = CompressionGZIP
-	if runtime.Version() == "go1.8" || strings.HasPrefix(runtime.Version(), "go1.8.") {
+	if strings.HasPrefix(runtime.Version(), "go1.8") || strings.HasPrefix(runtime.Version(), "go1.9") {
 		testEncodable(t, "empty gzip", &message, emptyGzipMessage18)
 	} else {
 		testEncodable(t, "empty gzip", &message, emptyGzipMessage)