old upgrade behaviour.
Add test for upgrade from 5.0.30

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1-maint

columns to make sure they both exist and have the intended type 

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

mysql_fix_privilege_tables.s's ability to convert the system tables as of
3.20 to current system table format
Add similar test for 4.1.23 tables - but use "mysql < mysql_fix_privilege_tables.sql"
so it can be run on any platform. 

into  shellback.(none):/home/msvensson/mysql/mysql-5.1-maint

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint

into  shellback.(none):/home/msvensson/mysql/mysql-4.1-maint

into  shellback.(none):/home/msvensson/mysql/mysql-5.1-maint

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint

into  shellback.(none):/home/msvensson/mysql/mysql-5.0-maint

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint

"Y" are different) to utf8_general_ci (where same).

$MYSQLTEST_VARDIR, for usage of vardir=e:/var<nnn> on windows

- Corrected mistake in Windows only test.

into  amd64.:D:/src/mysql-5.1-maint_bug23983

- When a shared library argument is supplied, it's checked for an OS
specific directory separator.  The expected error is different
depending on the separator used. Created OS specific versions of these
tests.

into  salvation.intern.azundris.com:/home/tnurnberg/work/mysql-5.1-maint-16456

Fix tests for new behaviour: an error is thrown if a NON DETERMINISTIC
stored function (SF) is called during statement-based replication (SBR).

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

Update usage description

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

 - Set environment variable BIG_TEST when using --big-test
 - Skip comment lines when looking for features a test case supports.

 - Dont require restart when using extern and there is no record of
   master being started(pid is not known)