Author: Stephen Bourget
MDL-45890 Blog: add additional events
http://git.moodle.org/gw?p=moodle.git;a=commit;h=02ce2e413c66662e84fc334c839f3c11d5f724b8
http://github.com/moodle/moodle/commit/02ce2e413c66662e84fc334c839f3c11d5f724b8
+ 3.2 en [eventblogassociationdeleted,core_blog]
+ 3.2 en [eventblogexternaladded,core_blog]
+ 3.2 en [eventblogexternalremoved,core_blog]
+ 3.2 en [eventblogexternalupdated,core_blog]
+ 3.2 en [eventexternalblogsviewed,core_blog]