Git commits in Moodle 3.0.0 by Nivedita Setru

commit 223d6cb3bf8a8ac99679c8d6403d555f94b11cd0
Author: Nivedita Setru <n.setru@ucl.ac.uk>
Date:   Mon, 30 Mar 2015 01:56:40 +0800
Tag:    v3.0.0-beta

MDL-26501 mod_glossary: Allow to specify visible tabs