Author: Andrew Hancox
MDL-46929 mod_forum: Implement tagging
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d2ba493cfea58768d5d47630af53fecdf5100c82
http://github.com/moodle/moodle/commit/d2ba493cfea58768d5d47630af53fecdf5100c82
+ 3.3 en [removeallforumtags,mod_forum]
+ 3.3 en [searchtags,mod_forum]
+ 3.3 en [tagarea_forum_posts,mod_forum]
+ 3.3 en [tagsdeleted,mod_forum]
+ 3.3 en [tagtitle,mod_forum]