Added some alias to SHOW commands
Prepare for dynamic changing of MySQL variables


man/Makefile.am:
  Changed safe_mysqld -> mysqld_safe
man/isamchk.1:
  Changed safe_mysqld -> mysqld_safe
man/isamlog.1:
  Changed safe_mysqld -> mysqld_safe
man/mysql.1:
  Changed safe_mysqld -> mysqld_safe
man/mysql_zap.1:
  Changed safe_mysqld -> mysqld_safe
man/mysqlaccess.1:
  Changed safe_mysqld -> mysqld_safe
man/mysqladmin.1:
  Changed safe_mysqld -> mysqld_safe
man/mysqld.1:
  Changed safe_mysqld -> mysqld_safe
man/mysqld_multi.1:
  Changed safe_mysqld -> mysqld_safe
man/mysqld_safe.1:
  Changed safe_mysqld -> mysqld_safe
man/mysqldump.1:
  Changed safe_mysqld -> mysqld_safe
man/mysqlshow.1:
  Changed safe_mysqld -> mysqld_safe
man/perror.1:
  Changed safe_mysqld -> mysqld_safe
man/replace.1:
  Changed safe_mysqld -> mysqld_safe
man/which.2:
  Changed safe_mysqld -> mysqld_safe
myisam/mi_search.c:
  Fixed bug when using packed keys.
scripts/Makefile.am:
  Changed safe_mysqld -> mysqld_safe
scripts/make_binary_distribution.sh:
  Changed safe_mysqld -> mysqld_safe
scripts/mysql_install_db.sh:
  Changed safe_mysqld -> mysqld_safe
scripts/mysqld_multi.sh:
  Changed safe_mysqld -> mysqld_safe
scripts/mysqld_safe-watch.sh:
  Changed safe_mysqld -> mysqld_safe
scripts/mysqld_safe.sh:
  Changed safe_mysqld -> mysqld_safe
sql/lex.h:
  Addex SHOW INDEXES as an alias for SHOW INDEX
sql/sql_class.cc:
  Prepare for dynamic changing of MySQL variables
sql/sql_lex.h:
  Prepare for dynamic changing of MySQL variables
sql/sql_yacc.yy:
  Some changes to SHOW commands.
support-files/binary-configure.sh:
  Changed safe_mysqld -> mysqld_safe
support-files/mysql-max.spec.sh:
  Changed safe_mysqld -> mysqld_safe
support-files/mysql-multi.server.sh:
  Changed safe_mysqld -> mysqld_safe
support-files/mysql.server.sh:
  Changed safe_mysqld -> mysqld_safe
support-files/mysql.spec.sh:
  Changed safe_mysqld -> mysqld_safe