Support Mod rules in tournaments

rooms.js

@@ -1666,8 +1666,6 @@ let Rooms = Object.assign(getRoom, {
 		}
 
 		const roomid = Rooms.global.prepBattleRoom(formatid);
-		const format = Dex.getFormat(formatid);
-		formatid = format.id;
 		options.format = formatid;
 		// options.rated is a number representing the lower player rating, for searching purposes
 		// options.rated < 0 or falsy means "unrated", and will be converted to 0 here

tournaments/index.js

@@ -116,8 +116,7 @@ class Tournament {
 	setCustomRules(rules, output) {
 		let format = Dex.getFormat(this.originalFormat);
 		if (format.team) {
-			output.errorReply(format.name + " does not support custom rules.");
-			return false;
+			output.errorReply(`WARNING: ${format.name} uses generated teams - only in-battle mod rules (like Sleep Clause Mod) will have any effect.`);
 		}
 		format = Dex.getFormat(this.originalFormat, rules);
 		if (!format.customRules) {

users.js

@@ -1330,7 +1330,7 @@ class User {
 			time: time,
 			from: this.userid,
 			to: user.userid,
-			format: '' + (format || ''),
+			format: toId(format),
 			//isPrivate: !!isPrivate, // currently unused
 			team: team,
 		};