Minor tweak on Exp system + Diet's Cygnus quest line

Changed minimum level required to gain EXP of mob from -5 to -20 the mob level (players below that level sees a red-colored font when displaying higher-leveled mob HPbar). Thanks to DietStory dev team, fixed some quests for KoC.

scripts/portal/exit_puppeteer.js

@@ -0,0 +1,17 @@
+function enter(pi) {
+	if(pi.getMap().countMonster(9300285) > 0){
+		pi.getPlayer().message("Defeat the Puppeteer before leaving.");
+		return false;
+	}
+	else{
+		var eim = pi.getEventInstance();
+		if(eim != null){
+			eim.stopEventTimer();
+			eim.dispose();
+		}
+
+		pi.playPortalSound();
+		pi.warp(105070300, 3);
+		return true;
+	}
+}