colset을 can_change_flag로 변경.

twe/schema.php

@@ -181,7 +181,7 @@ $nation_schema = "
   create table nation (
     nation  int(6) not null auto_increment,
     `name` CHAR(64) NOT NULL COLLATE 'utf8_bin',
-    color   char(10) not null,  colset int(1) default 1,
+    color   char(10) not null,  can_change_flag int(1) default 1,
     onlinegen   varchar(1024) default '',
     msg     text default '',
     capital int(1) default 0,   capset int(1) default 0,