Portability fix for mysqlmanager.

into work.mysql.com:/home/tim/my/4

into mysql.sashanet.com:/home/sasha/src/bk/mysql-4.0

Do-rpm  	remove the file before doing a cp
Do-rpm  	print out the log file name

This wrapper noew will include all the necessary, system specific files,
which makes all normal source files much easier to write and maintain.
Portability fixes.

into mysql.sashanet.com:/home/sasha/src/bk/mysql-4.0

excuse to have a test case. Mental trick to get things moving faster...

Speed up column-completion in 'mysql'
Don't use ISAM if HAVE_ISAM is not defined
A lot of fixes for the embedded version.  All libraries are now included in libmysqld.a
Changed arguments to convert_dirname() to make it more general.
Renamed files in the 'merge' directory to all use a common prefix.
Don't compile both assembler and C functions on x86

Manual Changelog update

into work.mysql.com:/home/bk/mysql-4.0

updated results - now ready to push

Portability fixes.
Handle cleanup when we get an error before the message file is read.
Fix bug in multi-table delete

Fix that compressed packets and normal packets looks indentical before calling net_real_write()
(Needed for query cache)
Optimize IS NULL handling

instrumented the server with DBUG_SYNC_POINT() macro