Git commits in Moodle 2.9.1 by Rod Norfor

commit 6e0401d61f48693c426dd8abd96c81b5c8e4f094
Author: Rod Norfor <rod.norfor@open.ac.uk>
Date:   Wed, 10 Jun 2015 15:17:36 +0800
Tag:    v2.9.1

MDL-39353 xmlrpc: Add proxy support