Merge InnoDB-4.0.14: SAVEPOINT now implemented; InnoDB now accepts also column prefix keys; crashing bug in ON UPDATE CASCADE fixed; page checksum formula fixed

if one is running many mysqlds through mysqld_multi, for example.
Without this option, on Linux one mysqld_safe process may kill
other mysqlds as well, if started using the same binary and path.

into narttu.mysql.fi:/my/mysql-4.0

   define a different niceness level in my.cnf (Bug #627)

into mysql.com:/space/my/mysql-4.0-build

Item_extract needs special implementation for eq().
Item_func::eq doesn't work correctly because we have to compare 
Item_extract::int_type parameters also

We need to propagate this to 4.1

   to accept --socket option (Bug #592)

Added option --gdb
Free memory used by replicate_xxx and binglog_xxx options

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

we now make a distinction between if the master is < 3.23.57, 3.23 && >=57, and 4.x
(before the 2 3.23 were one). This is because in 3.23.57 we have a way to distinguish between
a Start_log_event written at server startup and one written at FLUSH LOGS, so we
have a way to know if the slave must drop old temp tables or not.
Change: mi->old_format was bool, now it's enum (to handle 3 cases). However, functions
which had 'bool old_format' as an argument have their prototypes unchanged, because
the old old_format == 0 now corresponds to the enum value BINLOG_FORMAT_CURRENT which
is equal to 0, so boolean tests are left untouched. The only case were we use mi->old_format
as an enum instead of casting it implicitly to a bool, is in Start_log_event::exec_event,
where we want to distinguish between the 3 possible enum values.

  Add syntax SAVEPOINT id and ROLLBACK TO SAVEPOINT id. This is compatible with DB2 and Oracle but not with SQL Server. Savepoints do not do anything yet, this is just parsing.

into ua126d19.elisa.omakaista.fi:/home/my/bk/mysql-4.0

if 'user_name' is the current user and it is not root.

  Revert a change to dict_mem_index_add_field which slipped prematurely into the bk tree

  Fix the BDB crash in the previous push; to save CPU remove duplicate calls of commit in InnoDB

into ua126d19.elisa.omakaista.fi:/home/my/bk/mysql-4.0

in case of an empty string. Bug ID 586.

More debugging variables
Increment aborted_threads in case of killed or too big packet

into narttu.mysql.fi:/my/mysql-4.0

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

   to set CXX=gcc (cannot link the code with g++) - this should help to
   recompile the RPM on Distributions using gcc 3
 - Added a symlink /usr/sbin/rcmysql -> /etc/init.d/mysql

into narttu.mysql.fi:/my/mysql-4.0

   Red Hat's chkconfig (Bug #272) (The LSB spec is a bit ambigous about
   what actually needs to be put into this field)

  If the autocommit is on, let handler.cc commit or rollback the whole transaction at an updating SQL statement end. This probably fixes bug number 578. The problem was that when explicit LOCK TABLES is used, then the lock count method in autocommit does not work.

Portability fix for Windows 64

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