WL #1034 (Internal CRON)


mysql-test/r/events.result:
  update test result
mysql-test/t/events.test:
  add tests
sql/event_timed.cc:
  - remove stupid check of val_int()
  - fix for bug #16419 (Events: can't use timestamp in the schedule)
    => don't use val_int() but only get_date() and use the date!
sql/share/errmsg.txt:
  - fix an error message, one more "einen"
sql/sql_yacc.yy:
  - handle new return value of event_timed::init_execute_at()