In some places in mysqld behaviour depends on system working directory
It works badly in libmysqld because user can set it in the way he needs.
I think we should explicitly insert mysql_real_data_home value in
paths in these places

into build.mysql.com:/users/rburnett/mysql41

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

  Added (my_bool) cast to !(nextflag & SEARCH_PREFIX) code to correct MSVC warning about mismatched integral types

into mysql.com:/home/jonas/src/mysql-4.1

into eagle.mysql.r18.ru:/home/vva/work/BUG_4998/mysql-4.1

into eagle.mysql.r18.ru:/home/vva/work/BUG_4998/mysql-4.1

(Bug #4998 --protocol doesn't reject bad values)

Fix master printout

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

into mysql.com:/dbdata/psergey/mysql-4.1-root-root

into mysql.com:/home/jonas/src/mysql-4.1

into deer.(none):/home/hf/work/mysql-4.1.5066

into mysql.com:/home/jonas/src/mysql-4.1

into deer.(none):/home/hf/work/mysql-4.1.5066

into brandersnatch.localdomain:/home/dlenev/src/mysql-4.1-fix

into deer.(none):/home/hf/work/mysql-4.1.emb

into poseidon.(none):/home/tomas/mysql-4.1-clean

We have to include my_pthread.h since it is the place where localtime_r() is declared 
on platforms where this function is missing.

detect change of #replicas + #nodes

into deer.(none):/home/hf/work/mysql-4.1.5066

into deer.(none):/home/hf/work/mysql-4.1.5066

into build.mysql.com:/users/rburnett/mysql-4.1

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

Fixed error messages

into build.mysql.com:/users/rburnett/mysql-4.1

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

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

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

into avenger.(none):/export/brian/mysql/4.1

 allowed parsing of table fields inside aggregate functions
 added new tests of fields resolving in grouping