statistics (like 4.0 did) (patch #3, with review #1 & #2 feedback addressed)

Small tweak for random read performance (we shouldn't always tell the OS that we will be doing a linear scan). 

into  mysql.com:/usr/home/bar/mysql-4.1.b12611

into  mysql.com:/usr/home/bar/mysql-4.1.b12829

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1

into mysql.com:/Users/eric/bktmp/mysql-4.1

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

  Argument of RAND function can be constant value only

  adding test case.
item_cmpfunc.cc:
  Bug#12611
  ESCAPE + LIKE do not work when the escape char is a multibyte one
  Additional fix for 8bit character sets:
  escape character must be converted into
  operation character set.

  Bug 12611 : ESCAPE + LIKE do not work when the escape char is a multibyte one
  Forgot to commit this file in the previous changeset,
  together with other files.

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

into  sanja.is.com.ua:/home/bell/mysql/bk/work-4.0

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1

 - Update test cases

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1

into  mysql.com:/usr/home/bar/mysql-4.1.b9948

into  neptunus.(none):/home/msvensson/mysql/bug12959/my41-bug12959

  bug#9948
  changed client-charset behavior in 4.1.x libmysql, which issue BC prob
  after review fixes

into dl145b.mysql.com:/home/ndbdev/mysql-4.1

added parseable printout in ndb_restore

  Test case for bug #12859 group_concat in subquery cause incorrect not null.

into  mysql.com:/usr/home/ram/work/4.1.b4214

+ added option to dumpe rest of page after exnd of data

into  eel.(none):/home/jonas/src/mysql-4.1-push

Handle systems like default FC4 where 127.0.0.1 doesn't always map to 'localhost' first. 
(Bug #11822)

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

into  eel.(none):/home/jonas/src/mysql-4.1-push

  Always abort if node failure occured between startTransaction and commit
  (can later be improved by wl#2610)