- fix setting of niceness level

support-files/mysql.server.sh
     - applied some fixes from 4.0 mysql.server script
     - fix my.cnf parsing

into mysql.com:/space/my/mysql-3.23

Fix for Mac OS X shutdown

into mysql.com:/space/my/mysql-3.23

 - applied some changes from the 4.0 tree (enable multiple 
   --conf-environment options, add --with-debug, don't add "-max"
   prefix just because BDB is enabled)

into sinisa.nasamreza.org:/mnt/work/mysql

into mysql.com:/space/my/mysql-3.23

  Backport of bug fix in 4.0: do not x-lock rows under LOCK TABLES READ unless the table is a temp table

  Backport of bug fix in 4.0: do not x-lock rows under LOCK TABLES READ unless the table is a temp table

   (thanks to Gwenole Beauchesne <gbeauchesne@mandrakesoft.com>

 - "make distcheck" needs to be fixed

Fix for another optimize bug is undone, as the new one handles both cases.
test added

  Backport from 4.0 a bug fix: if unique search from a primary key matched a delete-marked record, InnoDB could return the NEXT record

into sinisa.nasamreza.org:/mnt/work/mysql

Quote all table names with backticks.  

into geopard.(none):/storage/bk/mysql-3.23

into sinisa.nasamreza.org:/mnt/work/mysql

into mysql.com:/home/walrus/bk/323

into geopard.(none):/storage/bk/mysql-3.23

This only showed up under heavy load.