Added kill command and PM2 ecosystem file with restart delay.

src/app.js

@@ -145,6 +145,11 @@ function onMessage(message, bot, games) {
 	const user = bot.users[message.userId] || message.user;
 	const room = bot.rooms[message.roomId];
 
+	if (command === 'kill') {
+		process.exit();
+		return;
+	}
+
 	if (command) {
 		const args = body.split(/\s+/).slice(1);
 		const game = games[command];