- Fixed tests
- Optimized new code
- Fixed some unlikely core dumps
- Better bug fixes for:
  - #14397 - OPTIMIZE TABLE with an open HANDLER causes a crash
  - #14850 (ERROR 1062 when a quering a view using a Group By on a column that can be null

Fixes core dump when reusing thread when running debug binary

Larger stack size neaded for open table on x86 64 bit
Fix failing test cases
Deleted symlink from bk

into  regul.home.lan:/mnt/md/bk/mysql-5.0

into  mysql.com:/opt/local/work/mysql-5.0-root

check_stack_overrun().

into serg.mylan:/usr/home/serg/Abk/mysql-5.0

into  sanja.is.com.ua:/home/bell/mysql/bk/work-merge-5.0

into  sanja.is.com.ua:/home/bell/mysql/bk/work-merge-5.0

if inner routine has more local variables than outer one, and
one of its last variables was used as argument to NOT operator".

THD::spcont was non-0 when we were parsing stored routine/trigger
definition during execution of another stored routine. This confused
methods of Item_splocal and forced them use wrong runtime context.
Fix ensures that we always have THD::spcont equal to zero during
routine/trigger body parsing. This also allows to avoid problems
with errors which occur during parsing and SQL exception handlers.

Corrected function declaration 

into serg.mylan:/usr/home/serg/Abk/mysql-5.0

Fix a possible problem on RPM un-install. bug#15145

into  mysql.com:/usr/home/pem/show-sp-code/mysql-5.0

into  mysql.com:/users/lthalmann/bk/mysql-5.0-hexdump

Changed wrong printf to fprintf.

into production.mysql.com:/usersnfs/istruewing/autopush/mysql-5.0

into mysql.com:/Users/kent/mysql/bk/mysql-5.0-distcheck

into production.mysql.com:/usersnfs/istruewing/autopush/mysql-5.0

into  sanja.is.com.ua:/home/bell/mysql/bk/work-merge-5.0

into  sanja.is.com.ua:/home/bell/mysql/bk/work-merge-5.0

into mysql.com:/M50/mysql-5.0

  Fixing test results accordingly.
item_timefunc.cc:
  Displaying BINARY or CHAR in error messages,
  depending on the character set.

into  mysql.com:/usr/home/bar/mysql-5.0.b14255

cast.result:
cast.test:
  Avoid 0x00 byte in test results, use HEX instead.

into  mysql.com:/home/eric/fed-err-mysql-5.0

(Patch provided by serg)

into  mysql.com:/home/eric/fed-err-mysql-5.0