Git commits in Moodle 2.9.3 by Tony Butler

commit ba646064b8e6e6ddf88da9274c08cf1057929253
Author: Tony Butler <tonyjbutler@gmail.com>
Date:   Mon, 02 Nov 2015 19:12:47 +0800
Tag:    v2.9.3

MDL-52012 core_lib: Add namespace to $OUTPUT->notify_message definition