Add fault tolerance in the scan of .ibd files at a crash recovery; formerly a single failure of readdir_get_next caused the rest of the directory to be skipped

into mysql.com:/space/my/mysql-4.1

into mysql.com:/space/my/mysql-4.1-build

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

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

into mysql.com:/space/my/mysql-4.1-build

into mysql.com:/home/matthias/Arbeit/mysql-4.1/src-clean

into mysql.com:/space/my/mysql-4.1-build

set_bit replaced with internal_set_bit,
clear_bit replaced with internal_clear_bit.

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

into mysql.com:/space/my/mysql-4.1-build

into mysql.com:/space/my/mysql-4.1-build

- fixed a date for a changelog entry  in the RPM spec file (s/Mar/Apr/) - RPM complains about wrongly
  ordered entries.

  Fix part of bug #9670: if MySQL calls ::store_lock with TL_IGNORE, do not change prebuilt->select_lock_type; this fix may heal the assertion failures reported in UPDATE and multi-table UPDATE; it is not clear if this fixes the problems in OPTIMIZE TABLE

into mysql.com:/space/my/mysql-4.1-build

- Added a stub scripts/fill_help_tables.sql file to satisfy the build dependencies
- Removed scripts/fill_help_tables.sh and updated scripts/Makefile.am accordingly

The fill_help_tables.sql stub will be replaced with the approriate content when building the
official source distribution via Bootstrap - it's now autogenerated on the documentation server
and will be copied into place before packing up the source distribution.

into mysql.com:/home/jimw/my/mysql-4.1-clean

  At the shutdown, write the latest lsn only to the first pages of the ibdata files of the system tablespace, NOT to the .ibd files; writing to tens of thousands .ibd files can take minutes

into hundin.mysql.fi:/home/heikki/mysql-4.1

  Do not test the value of err if the lock operation was skipped because innodb_logs_unsafe_for_binlog was TRUE; though this did not cause any bugs visible to the user, because err is inited to DB_SUCCESS at the start of the function row_search_for_mysql()

Manual merge of the ChangeSet to remove the dependency on manual.texi from the source tree (from 4.0)

  references to the .texi file and the build targets that depend on manual.texi as the input file.
- added COPYING as a regular file instead of creating it during the build. This ensures that it's part
  of the sources when pulling from BK (it used to be extracted from the manual)
- Removed a lot of cruft and unused/obsolete stuff from the Docs directory (e.g. Flags, Images)
- added a dummy mysql.info placeholder file (the info file is still used as the source to extract
  various text files during the build). It will be replaced with a "real" file during the Bootstrap
  process to create the official source distribution - the placeholder just satisfies build dependencies.

if foreign_key_checks=0. (Bug #9802)

into mysql.com:/home/jonas/src/mysql-4.1

  use DBUG_RETURN

  Impl. stupid mgm lock against shutting down 2 nodes simultaniously
  Add some more dump

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

because config.status may later need this file (if it does not find it
it won't incorporate dependencies of errmsg.sys in sql/share/Makefile) (thx Serg).
In sql/share/Makefile.am using "all:" leads to double-"all:" in Makefile (thx Konstantin).