WL#1034 (Internal CRON)


mysql-test/r/events.result:
  fix result of t/events (post-merge fix of bug #16642)
mysql-test/r/system_mysql_db.result:
  fix result(post-merge fix of bug #16642)
mysql-test/t/events.test:
  fix test, use --echo instead of select, fix failing create event statement
sql/event_timed.cc:
  add a bit more debug information