Fixed stack overflow checking with crash-me with gcc 3.0.4
Using @@unknown_variable doesn't hang client anymore
Added @@VERSION variable


Docs/manual.texi:
  Changelog
libmysql/libmysql.c:
  Fixed typo
myisam/myisampack.c:
  Removed not used argument
mysql-test/r/show_check.result:
  Added test of case insensitive SHOW VARIABLES LIKE
mysql-test/r/variables.result:
  test of system variables
mysql-test/t/show_check.test:
  Added test of case insensitive SHOW VARIABLES LIKE
mysql-test/t/variables.test:
  test of system variables
sql/item_func.cc:
  Fixed stack overflow checking with crash-me with gcc 3.0.4
  Using @@unknown_variable doesn't hang client anymore
  Added @@VERSION variable
sql/mysql_priv.h:
  Fixed stack overflow checking with crash-me with gcc 3.0.4
sql/share/czech/errmsg.txt:
  Fixed wrong error message
sql/share/danish/errmsg.txt:
  Fixed wrong error message
sql/share/dutch/errmsg.txt:
  Fixed wrong error message
sql/share/english/errmsg.txt:
  Fixed wrong error message
sql/share/estonian/errmsg.txt:
  Fixed wrong error message
sql/share/french/errmsg.txt:
  Fixed wrong error message
sql/share/german/errmsg.txt:
  Fixed wrong error message
sql/share/greek/errmsg.txt:
  Fixed wrong error message
sql/share/hungarian/errmsg.txt:
  Fixed wrong error message
sql/share/italian/errmsg.txt:
  Fixed wrong error message
sql/share/japanese/errmsg.txt:
  Fixed wrong error message
sql/share/korean/errmsg.txt:
  Fixed wrong error message
sql/share/norwegian-ny/errmsg.txt:
  Fixed wrong error message
sql/share/norwegian/errmsg.txt:
  Fixed wrong error message
sql/share/polish/errmsg.txt:
  Fixed wrong error message
sql/share/portuguese/errmsg.txt:
  Fixed wrong error message
sql/share/romanian/errmsg.txt:
  Fixed wrong error message
sql/share/russian/errmsg.txt:
  Fixed wrong error message
sql/share/slovak/errmsg.txt:
  Fixed wrong error message
BitKeeper/deleted/.del-identity.result~e41453a364242503:
  not used file
BitKeeper/deleted/.del-identity.test~326f469b59105404:
  not used file
sql/share/spanish/errmsg.txt:
  Fixed wrong error message
sql/share/swedish/errmsg.txt:
  Fixed wrong error message
sql/share/ukrainian/errmsg.txt:
  Fixed wrong error message
sql/sql_show.cc:
  SHOW VARIABLES LIKE ... are now case insensitive