Author: Mark Nelson
MDL-40908 core_tag: created a 'tag_deleted' event
http://git.moodle.org/gw?p=moodle.git;a=commit;h=db456ec1a52a57762e887985774e1847a26780e3
http://github.com/moodle/moodle/commit/db456ec1a52a57762e887985774e1847a26780e3
+ 2.7 en [eventtagdeleted,core_tag]