Git commits in Moodle 2.8.7 by Rod Norfor

commit 3b6d698f51bab4294e1be1cd4c41d1c2202767ec
Author: Rod Norfor <rod.norfor@open.ac.uk>
Date:   Wed, 10 Jun 2015 15:17:36 +0800
Tag:    v2.8.7

MDL-39353 xmlrpc: Add proxy support