Update version

To avoid users confusion, this is NOT a released version
And use something > last released version.

Author: remicollet

php_redis.h

@@ -25,7 +25,7 @@
 #define PHP_REDIS_H
 
 /* phpredis version */
-#define PHP_REDIS_VERSION "2.2.5"
+#define PHP_REDIS_VERSION "2.2.8-dev"
 
 PHP_METHOD(Redis, __construct);
 PHP_METHOD(Redis, __destruct);