unknown event'


client/mysqlbinlog.cc:
  Task 761:'mysqlbinlog should not die when reading
  unknown event'
  The 'force-read' option has been added.
sql/log_event.cc:
  Task 761:'mysqlbinlog should not die when reading
  unknown event'
  The'Unknown_log_event' class has been added
sql/log_event.h:
  Task 761:'mysqlbinlog should not die when reading
  unknown event'
  The 'Unknown_log_event' class has been added.