Clean out 'Graphical clients' section of the contributed software section

Accept zero dates without warnings

  Remove the flag HA_NOT_READ_PREFIX_LAST because ORDER BY orders wrong then; also remove the diagnostic print to avoid cluttering the error log

  Move to the right place the flag which bans use of HA_READ_PREFIX_LAST; add diagnostics and remove the assertion on line 2180 of ha_innodb.cc

 - mysql.spec.sh: MySQL-Max now requires MySQL >= 4.0 to avoid version
   mismatches (people were mixing MySQL 3.23 and 4.0 RPMs)

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

   and applied some cosmetical fixes

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

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

Only write short usage if one starts mysqldump without any options
Added query cache on windows
Added error message if one can't read privilege tables

   "--gcov" is actually passed as a command line option (to avoid
   failures on systems with no gcov installed)

into build.mysql2.com:/home/serg/mysql-4.0

  static nss linkingg issue

SET PASSWORD=... closed connection on error.

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

  Table hash key len in query cache also includes null char at end

Added missing mutex-lock around critical section in GRANT handling.

  Fix a crash introduced when we grew foreign key comment to 16000 chars