first pull, merge,test, and get it to work.

The main change is the new replication code - now we have two slave threads
SQL thread and I/O thread. I have also re-written a lot of the code to 
prepare for multi-master implementation. 

I also documented IO_CACHE quite extensively and to some extend, THD class.

ft_dump.c	-l option - report word length distribution (for ft_max_word_len_for_sort)

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

Free character sets properly (for embedded).
Add missing mutex in HANDLER CLOSE

into sarvik.tfr.cafe.ee:/usr/home/jcole/bk/mysql-4.0

  Fixed small bug

  Fixed some issues for O'Reilly.
  * Remove "mailto:" from @email{} references in XML output. Good for normal XML of course, but bad when printing.
  * Removing (Cross)References for sections that have been excluded from printed manual.
  * In several titles, spaces are missing. You see a title like: <title>Speed of <command>INSERT</command>Queries</title>.

into sarvik.tfr.cafe.ee:/usr/home/tfr/BK/mysql-4.0

  Added a mirror in Spain

Small improvement to write caching.

Portability fixes.

fixed skip counter to do the RightThing (TM) when the user messes up.
Still do RightThing when he gets it right.

  Added a mirror in Netherlands

  Fix Australian mirror URL

Fixed race condition when using the binary log and INSERT DELAYED which could cause the binary log to have rows that was not yet written to MyISAM tables.

into volk.internalnet:/home/tonu/mysql-4.0

Changed incomplete testcase to another incomplete testcase which works even if localhost.localdomain is first in /etc/hosts file for 127.0.0.1

into volk.internalnet:/home/tonu/mysql-4.0

Update test results for MySQL 4.0