Git commits in Moodle 2.5.1 by Adam Olley

commit 096707c01d3fdcfe30e028c34a4dfe182bc21b1d
Author: Adam Olley <adam.olley@netspot.com.au>
Date:   Fri, 31 May 2013 07:59:56 +0800
Tag:    v2.5.1

MDL-39947 mod_forum: Add safety check to variable assignment when counting unread posts