Prepare v0.30.0 (#497)

* Prepare v0.30.0

* Add GAPIC to Spanner docs table of contents

Author: jdpedrie

SpannerClient.php

@@ -65,7 +65,7 @@ class SpannerClient
     use LROTrait;
     use ValidateTrait;
 
-    const VERSION = 'master';
+    const VERSION = '0.1.0';
 
     const FULL_CONTROL_SCOPE = 'https://www.googleapis.com/auth/spanner.data';
     const ADMIN_SCOPE = 'https://www.googleapis.com/auth/spanner.admin';

V1/README.md

@@ -0,0 +1,16 @@
+# Google Cloud PHP Spanner
+
+> Idiomatic PHP client for [Cloud Spanner](https://cloud.google.com/spanner/).
+
+* [Homepage](http://googlecloudplatform.github.io/google-cloud-php)
+* [API documentation](http://googlecloudplatform.github.io/google-cloud-php/#/docs/cloud-spanner/latest/spanner/spannerclient)
+
+**NOTE:** This repository is part of [Google Cloud PHP](https://github.com/googlecloudplatform/google-cloud-php). Any
+support requests, bug reports, or development contributions should be directed to
+that project.
+
+## Installation
+
+```
+$ composer require google/cloud-spanner
+```

VERSION

@@ -0,0 +1 @@
+0.1.0