Git commits in Moodle 3.3.x by yair.spielmann

commit 0bbd7b82918792ea12f81283f1c7dc3c8f5774e6
Author: yair.spielmann <yair.spielmann@synergy-learning.com>
Date:   Thu, 31 Aug 2017 19:21:47 +0800
Tag:    v3.3.4

MDL-59512 tool_oauth2: add option for basic authentication