Bump stable version in the plugin too

Author: danielbachhuber

wp-redis.php

@@ -3,7 +3,7 @@
 	Plugin Name: WP Redis
 	Plugin URI: http://github.com/pantheon-systems/wp-redis/
 	Description: WordPress Object Cache using Redis. Requires the PhpRedis extension (https://github.com/phpredis/phpredis).
-	Version: 0.2.2
+	Version: 0.3.0
 	Author: Pantheon, Josh Koenig, Matthew Boynes, Daniel Bachhuber Alley Interactive
 	Author URI: https://pantheon.io/
 */