WL#1034 (Internal CRON)


mysql-test/r/events.result:
  fix results file
mysql-test/t/events.test:
  change test for the fix of bug#16404
sql/lex.h:
  enabled/disabled were only for events, going back to enable/disable
  fix for bug#16404
sql/sql_yacc.yy:
  ENABLED -> ENABLE
  DISABLED -> DISABLE
  fix for bug#16404 (Events: keyword is ENABLED rather than ENABLE)