character_set_database was added
Code optimization: reuse more code for all character sets variables


sql/mysqld.cc:
  character_set_server is now updatable
  character_set_database was added
sql/set_var.cc:
  character_set_server is now updatable
  character_set_database was added
sql/set_var.h:
  character_set_server is now updatable
  character_set_database was added
sql/sql_base.cc:
  character_set_server is now updatable
  character_set_database was added
sql/sql_class.cc:
  character_set_server is now updatable
  character_set_database was added
sql/sql_class.h:
  character_set_server is now updatable
  character_set_database was added
sql/sql_db.cc:
  character_set_server is now updatable
  character_set_database was added
sql/sql_load.cc:
  character_set_server is now updatable
  character_set_database was added
sql/sql_table.cc:
  character_set_server is now updatable
  character_set_database was added
sql/sql_yacc.yy:
  character_set_server is now updatable
  character_set_database was added
BitKeeper/etc/ignore:
  Added scripts/mysql_create_system_tables to the ignore list