Git commits in Moodle 2.6.4 by Tim Lock

commit 23c3ce59ff7014547c10a1be33edccfd269cabc3
Author: Tim Lock <tim.lock@netspot.com.au>
Date:   Fri, 13 Jun 2014 07:46:24 +0800
Tag:    v2.6.4

MDL-45982: Implement displaying of non error messages from a provider.