Fix possible deadlock when running with small log buffer, causing buffer to be full, but not page getting flushed

into  eel.(none):/home/jonas/src/mysql-5.1-new

into  poseidon.ndb.mysql.com:/home/tomas/mysql51

into  poseidon.ndb.mysql.com:/home/tomas/mysql51

    enable extra logging in ndb handler during test runs

  Fix SR bug that extent pages was scanned before undo was run
  Fix bug wrt page flushing/tsman and tup's dirty page list

into  poseidon.ndb.mysql.com:/home/tomas/mysql51

into  poseidon.ndb.mysql.com:/home/tomas/mysql51

into  mysql.com:/home/kostja/mysql/mysql-5.1-merge

into  mysql.com:/home/stewart/Documents/MySQL/5.1/new

into  mysql.com:/home/emurphy/src/mysql/bk-clean/mysql-5.1-new-merge

into  mysql.com:/usr/home/bar/mysql-5.1.new.ctype

A prerequisite for several fulltext and XML bugs.
MY_CHARSET_HANDLER now has a new function "ctype"
to detect a type of the next character in a string
(i.e. digit, letter, space, punctuation, control, etc),
which now works correctly for both 8bit and multibyte charsets.
Previously only 8bit charsets worked correctly,
while any multibyte character was considered as letter
in multibyte charsets.
Many files:
  Adding new function
Makefile.am:
  Adding build rules for uctypedump,
  a dump tool to create my_uctype.h
  using Unicode Character Database file.
m_ctype.h:
  Adding declaration of my_uni_ctype,
  ctype data for Unicode.
  Adding new member into MY_CHARSET_HANDLER
Makefile.am:
  Adding my_uctype.h into noinst_HEADERS
my_uctype.h, uctypedump.c:
  new files:
  ctype data for unicode,
  and the tool to generate it from 
  a Unicode Character Database file.

into  mysql.com:/home/emurphy/src/mysql/bk-clean/mysql-5.1-new-merge

into  mysql.com:/home/emurphy/src/mysql/bk-clean/mysql-5.1-new-merge
Null-merge InnoDB snapshots from 5.0 to 5.1

into  mysql.com:/home/dlenev/src/mysql-5.1-merges

into  mysql.com:/usr/local/home/marty/MySQL/mysql-5.1-new-wl1892

into  mysql.com:/home/dlenev/src/mysql-5.1-merges

into  mysql.com:/home/dlenev/src/mysql-5.1-merges

into  mysql.com:/home/kostja/mysql/mysql-5.1-merge

When we add new privilege we should update mysql-test/lib/init_db.sql
accordingly.

into  mysql.com:/space/pekka/ndb/version/my51

into  poseidon.ndb.mysql.com:/home/tomas/mysql51

into  mysql.com:/home/kostja/mysql/mysql-5.1-merge

into  mysql.com:/home/kostja/mysql/mysql-5.1-merge

into  mysql.com:/usr/local/home/marty/MySQL/mysql-5.1-new-wl1892