Fix for server hang bug

  more accurate comment

Fix for BUG#4375 "Windows specific directories are copied during
replication": in the Windows version of my_dir(), do not show hidden
or system files which Windows sometimes creates in the root directory
of drive (like RECYCLER and SYSTEM VOLUME INFORMATION directories) (so
this problem showed up only when the datadir was the root dir of a
drive).
This will make SHOW DATABASES display better, and will do no harm to
MySQL. For example, DROP DATABASE will not miss some files, as MySQL
creates no hidden or system files.

if a command has a comment at the end of line, like:
error 2002 ; # this is error 2002
then the parsing of comment should not make mysqltest
forget about the value of expected error.
Reason it forgot it (so the next query caused the test to fail)
is that internally the above line is 2 queries.

into here.mwagner.org:/Volumes/BK/mysql-4.0

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

processlist on slave":
we now report in SHOW PROCESSLIST that we are writing to the temp
files or loading the table. When we are writing to the tmp file:
| 3  | system user |                 |    | Connect | 6    | Making temp file /tmp/SQL_LOAD-2-1-2.data | 
and when we are actually loading the .data temp file into the table:
| 3  | system user |                 | test | Connect | 2    | | LOAD DATA INFILE '/tmp/SQL_LOAD-2-1-2.data' INTO TABLE `t` <...> |

  Added code to use locally installed perl modules first

according to http://www.bitkeeper.com/Documentation.FAQS.Windows_NT.html

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

into mysql.com:/home/mydev/mysql-4.0-lock

into mysql.com:/home/mydev/mysql-4.0-bug2686

into mysql.com:/home/mydev/mysql-4.0-bug3565

into here.mwagner.org:/Volumes/BK/mysql-4.0-work

  Updates for output enhanced Bootstrap

Redesigned the handler close functions so that they are usable
at different places where waiting for closing tables is done.

Added put_length() to get_length() and unpack_key() to pack_key().
Keys were packed with the minimum size of the length field for the key part and 
unpacked with length size of the base column. 
For the purpose of optimal key packing we have the method pack_key(), while rows are 
packed with pack(). Now keys are unpacked with unpack_key() and no longer with 
unpack() which is used for rows.

into mysql.com:/home/mydev/mysql-4.0-bug2688

  add typelib.h to filelist
Clients and Tools.fgl:
  add libmysql.dll to file list
4.0.XX-gpl.ipr:
  Various fixes to installshield project file (added files)

  Small fix to handle the src rpm file correctly (contains '0', release number in spec file)

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

with ALTER TABLE and CREATE/DROP INDEX. (Bug #3109)
Make net_buffer_length visible for mysql clients (Bug #4206)

into hundin.mysql.fi:/home/marko/k/mysql-4.0

into here.mwagner.org:/Volumes/BK/mysql-4.0

into here.mwagner.org:/Volumes/BK/mysql-4.0-work

  Change behaviour to be like the md5sum in GNU coreutils

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

   (e.g. a fix for BUG#3507 and some modifications recommended
   by Andrea Suatoni and Joerg Behrens - thank you!)

dded code to clear the tail of the reference buffer if the actual key length 
is less than the maximum key length.

  Document the handling of quoted strings

into hundin.mysql.fi:/home/marko/k/mysql-4.0

into sanja.is.com.ua:/home/bell/mysql/bk/work-qc-4.0

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