added THD::work_part_info member where we now store modified
partition_info structure.
It allows no solve problem when different parts of the part_info get
into different mem_roots

into  kite-hub.kitebird.com:/src/extern/MySQL/bk/mysql-5.1

  Backport option description change from 5.1 to 5.0.

into  zim.(none):/home/mikael/bug16370

into  production.mysql.com:/usersnfs/gbichot/mysql-5.1-new

(nothing to document, this bug was not released).

into  zim.(none):/home/mikael/bug16370

into  zim.(none):/home/mikael/bug16370

into  zim.(none):/home/mikael/bug17127

into  zim.(none):/home/mikael/bug17127

into  mysql.com:/home/hartmut/projects/mysql/bk-clean/5.1

declared in the 'for' statement is not portable, some compilers
still don't implement this ANSI C++ specification (Bug #14995)

into  zim.(none):/home/mikael/bug16370

into  zim.(none):/home/mikael/bug16370

into  zim.(none):/home/mikael/bug15961

New error message

into  production.mysql.com:/usersnfs/gbichot/mysql-5.1-new

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  production.mysql.com:/usersnfs/gbichot/mysql-5.1-new

into  zim.(none):/home/mikael/bug16370

  Revise option description. And let's put it in the proper
  lexical order within the option list.

New test case (bug was already fixed)

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  mysql.com:/usr/local/mysql/tmpbuild-5.1

  Small change to enable sending of mails from Windows bk clones

into  mysql.com:/usr/local/mysql/mysql-5.1-new

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.1-new

into  production.mysql.com:/usersnfs/gbichot/mysql-5.1-new

- detect the need for row-based binlogging not at execution stage but earlier at parsing stage; needed for example for CREATE TABLE SELECT UUID().
- more tests of this mixed mode.

into  shellback.(none):/home/msvensson/mysql/mysql-5.1

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  production.mysql.com:/usersnfs/rburnett/mysql-5.1-bug17173