Added basic per-thread time zone functionality (based on public
domain elsie-code). Now user can select current time zone
(from the list of time zones described in system tables).
All NOW-like functions honor this time zone, values of TIMESTAMP
type are interpreted as values in this time zone, so now
our TIMESTAMP type behaves similar to Oracle's TIMESTAMP WITH
LOCAL TIME ZONE (or proper PostgresSQL type).
  
WL#1266 "CONVERT_TZ() - basic time with time zone conversion 
function".
  
Fixed problems described in Bug #2336 (Different number of warnings 
when inserting bad datetime as string or as number). This required
reworking of datetime realted warning hadling (they now generated 
at Field object level not in conversion functions).
  
Optimization: Now Field class descendants use table->in_use member
instead of current_thd macro.

  compile error on hpux

No commit message

into sanja.is.com.ua:/home/bell/mysql/bk/work-4.1

into poseidon.bredbandsbolaget.se:/home/tomas/mysql-4.1

into mysql.com:/home/kostja/mysql/mysql-4.1-4030

  Remove the use of mem_realloc in fil0fil.c; mem_realloc() was broken and the patch to remove its definition will propagate from the 4.0 tree; crash recovery with innodb_file_per_table has to be tested after this patch, not tested yet

into mysql.com:/home/kostja/mysql/mysql-4.1-4030

into kite-hub.kitebird.com:/src/extern/MySQL/bk/mysql-4.1

  Delete: ndb/bin/mysqlclusterd
.del-mysqlcluster_install_db~f363f803506081a6:
  Delete: ndb/bin/mysqlcluster_install_db
.del-mysqlcluster~26c9c37938503734:
  Delete: ndb/bin/mysqlcluster

into poseidon.bredbandsbolaget.se:/home/tomas/mysql-4.1

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

- mutex was unlocked before the end of the critical sesion,
- Portability issue: It's better to use (*alloc)(x) instead of alloc(x),
  if alloc is a function passed as an argument.
- Use {} around if() block, to avoid possible problems with some Windows compilers.

  missing file

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

   enabled

pops up fixed.

  fix up test result.

into ice.snake.net:/Volumes/ice2/MySQL/bk/mysql-4.1

and affected test results.

  Return the code of row_ins_foreign_check_on_constraint() as close to 4.0 as possible, except that we use mem_strdup() to allocate the memory for the modified table name

  introduced in ChangeSet@1.1843.1.25
InnoDB: fix bug in the error exit of
  fil_create_new_single_table_tablespace(), introduced in
  ChangeSet@1.1843.1.11

into ice.snake.net:/Volumes/ice2/MySQL/bk/mysql-4.1

and affected test results.

into ice.snake.net:/Volumes/ice2/MySQL/bk/mysql-4.1

into ice.snake.net:/Volumes/ice2/MySQL/bk/mysql-4.1

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

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

   (to disable assertions)