Fix 'Bootstrap' to bypass a problem with "bk changes" by changing the directory before calling the command.

Make test_if_skip_sort_order() rebuild tab->ref if it decides to use an index
different from the index join optimizer has choosen.  

into mysql.com:/usr/home/ram/work/mysql-4.1

into mysql.com:/usr/home/bar/mysql-4.1

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

  Added option --with-big-tables

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-perl

  Added option --with-blackhole

Argh!

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-perl

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-perl

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1

the current way of passing '-DBIG_TABLES' to the compilers.

This is needed even in 4.0, as 'Do-compile-all' must use this new approach for
all "max" builds in 4.0, 4.1, and up.

Backport of ChangeSet 1.1700.256.8: Export the variable MASTER_MY_PORT1 from the place where the second master is started

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

  Safer and mode readable way.

  More readable and safer way.

Bugs#9057: Incorrect errormsg for too-large char field in table definition

handle_connections_shared_memory (double free spotted by Monty).

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-perl

into mysql.com:/usr/home/bar/mysql-4.1

Not active by default.
One need to pass -DHAVE_CYBOZU_COLLATION to 
activate it.

into mysql.com:/home/cps/mysql/trees/mysql-4.1

  Corrected typo
mtr_diff.pl:
  A simplified unified diff in Perl
  new file

into mysql.com:/space/pekka/ndb/version/my41

into serg.mylan:/usr/home/serg/Abk/mysql-4.1