Author: Tim Hunt
MDL-47962 filter_glossary: Fix lang string concatenation
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b0a3b52fe91a1808170523238e83bf15f243c377
http://github.com/moodle/moodle/commit/b0a3b52fe91a1808170523238e83bf15f243c377
+ 3.6 en [glossarycategory,filter_glossary]
+ 3.6 en [glossaryconcept,filter_glossary]