Git commits in Moodle 2.8.0 by Matthew Tavella

commit 6cbd54806105d9d2604d506e2d65627efdae39c9
Author: Matthew Tavella <matthew.tavella@netspot.com.au>
Date:   Wed, 14 May 2014 08:29:15 +0800
Tag:    v2.8.0-beta

MDL-46567 gradereport_history: Fix bug with paging


commit f7744e915a05cd331c842baaa36b26b31ef4c0ae
Author: Matthew Tavella <matthew.tavella@netspot.com.au>
Date:   Wed, 14 May 2014 08:28:41 +0800
Tag:    v2.8.0-beta

MDL-46567 gradereport_history: Prevent duplicate username column from rendering