Small fixes to handle packaging of windows src (commercial) file

into mysql.com:/home/my/mysql-4.0

into serg.mylan:/usr/home/serg/Abk/mysql-4.0

into mysql.com:/home/my/mysql-4.0

the rpm postinstall script must call mysql_install_db with --user=mysql,
and mysql_install_db must then pass this to mysqld. Otherwise, mysqld
runs as root, and if you have --log-bin=somewhere_out_of_var_lib_mysql
it creates binlog files owned by root in this dir, and this dir is not
fixed by the 'chmod mysql', so files remain owned by root, and later mysqld
(running as 'mysql') can't read them.
I'm hardcoding 'mysql' in the postinstall script, but it's already hardcoded
there in many places (see the useradd and chown) so it's ok.

into serg.mylan:/usr/home/serg/Abk/mysql-4.0

into krsna.patg.net:/home/patg/mysql-4.0

into serg.mylan:/usr/home/serg/Abk/mysql-4.0

removed incorrect destructor (to prevent deleting item by recursion instead of by list scanning in case of chained OR or AND)

into teton.kitebird.com:/home/paul/bk/mysql-4.0

cmp_debug_dtuple_rec_with_match()
unless #ifdef UNIV_DEBUG

into mysql.com:/home/my/mysql-4.0

Portability fix for netware. (We can't use TRY_RUN when cross compiling)

into ice.snake.net:/Volumes/ice2/MySQL/bk/mysql-4.0

  Update README URL. (Bug #3678)

  Inside LOCK TABLES, use either LOCK_S or LOCK_X in locking reads; an improvent over the previous patch

will disable warnings, --log-warnings will increment warning level by one, or the
level can be given as an optional argument. Default level is 1.

Changed aborted connection warning to be logged only if the level is > 1.

into deer.(none):/home/hf/work/mysql-4.0

Windows

into serg.mylan:/usr/home/serg/Abk/mysql-4.0

into gw.mysql.r18.ru:/usr/home/ram/work/4.0.b3738

(Bug#3738: SQL_CALC_FOUND_ROWS ignores WHERE if LIMIT used,
 Bug#3845: wrong FOUND_ROWS result)