Author: Nivedita Setru
MDL-26501 mod_glossary: Allow to specify visible tabs
http://git.moodle.org/gw?p=moodle.git;a=commit;h=223d6cb3bf8a8ac99679c8d6403d555f94b11cd0
http://github.com/moodle/moodle/commit/223d6cb3bf8a8ac99679c8d6403d555f94b11cd0
+ 3.0 en [cnftabs,mod_glossary]
+ 3.0 en [visibletabs,mod_glossary]