Added delayed_user for delayed_threads
Don't use record cache when doing deletes


Docs/manual.texi:
  Added link to activestate perl
mysql-test/t/delayed.test:
  Added sleep for slow machines
scripts/mysql_install_db.sh:
  Fixed wrong option
sql-bench/crash-me.sh:
  Intialize some variables
sql/mysql_priv.h:
  Added delayed_user for delayed_threads
sql/mysqld.cc:
  Added delayed_user for delayed_threads
sql/sql_class.cc:
  Added delayed_user for delayed_threads
sql/sql_delete.cc:
  Don't use record cache when doing deletes
sql/sql_insert.cc:
  Added delayed_user for delayed_threads
tests/fork3_test.pl:
  Added periodic check/repair of table