Play 2.1.3 is available

https://groups.google.com/d/msg/play-framework/Jn9k6osk6V0/eJ196lN2JqQJ says: 

>Important: A major security vulnerability was found in Play's session handling [..]
>The Play team strongly advises that users of Play 2.1.x upgrade to 2.1.3 as soon as possible