Don't use new password format if mysql.user has old format
tables_priv was not reset on FLUSH PRIVILEGES if tables_priv was empty
Portability fixes for Windows


client/mysql.cc:
  Removed compiler warnings.
  Make quote handling simpler
include/config-win.h:
  Fix for myisam/rt_mbr.c
include/mysql.h:
  Change client_flag to unsigned long to handle more options.
libmysql/libmysql.c:
  Change client_flag to unsigned long to handle more options.
libmysqld/libmysqld.c:
  Change client_flag to unsigned long to handle more options.
myisam/rt_mbr.c:
  Portability fix for Windows
mysql-test/r/rpl_loaddata.result:
  Fix test case
sql/item_strfunc.cc:
  Don't use new password format if mysql.user has old format
sql/item_strfunc.h:
  Don't use new password format if mysql.user has old format
sql/mysql_priv.h:
  Don't use new password format if mysql.user has old format
sql/mysqld.cc:
  Don't use new password format if mysql.user has old format
sql/sql_acl.cc:
  Don't use new password format if mysql.user has old format.
  tables_priv was not reset on FLUSH PRIVILEGES if tables_priv was empty
sql/sql_class.h:
  Don't use new password format if mysql.user has old format
sql/sql_parse.cc:
  Change client_flag to unsigned long to handle more options.
sql/sql_yacc.yy:
  Don't use new password format if mysql.user has old format
strings/ctype-utf8.c:
  Remove compiler warnings
strings/ctype-win1250ch.c:
  Remove compiler warnings
tests/grant.res:
  Update results