better exit code checking

into sinisa.nasamreza.org:/mnt/hdc/Sinisa/mysql-4.0

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

fixed race condition in binary log auto-rotation
get rid of extention in binary log to avoid non-rotatable logs

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

remove extension from binary log if the user specifies one to avoid
    non-rotatable logs
fixed possible use of unitialized IO_CACHE in debug mode

manual.texi	Removed a few more spurious occurances of 'Gemini'. The manual is now completely rid of and documentation about GEMINI. GEMINI is not
manual.texi	Open Source software.

manual.texi	Removed all documentation referring to the GEMINI table type. GEMINI is not released under an Open Source license.

into sinisa.nasamreza.org:/mnt/hdc/Sinisa/mysql-4.0

into tik.mysql.fi:/home/my/mysql-4.0

    use truncate table
sql/slave.cc
    fixed race condition on server shutdown
sql/sql_repl.cc
    fixed uninitialized use of io_cache

    fixed test case to produce same results on txn-enabled binary. 
    temporary fix - permanent fix is it make mysqld behave the same with
    MyISAM on auto_increment insert after delete from tbl_name regardless
    of how the binary was compiled
sql/slave.cc
    fixed concurrency bug with log_seq
sql/slave.h
    last_log_seq needs to be updated atomically with pos
sql/sql_repl.cc
    cleared up comment and fixed concurrency bug

Removed new error message
Fixed test case for varbinary
Threads are again killable in "merge_buffers"
Cleanup of sql_repl.cc
SHOW OPEN TABLES now works when no tables are opened

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

test SHOW OPEN TABLES