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/enterDollcave.js

@@ -0,0 +1,4 @@
+function enter(pi) {
+	pi.openNpc(1063011, "PupeteerPassword");
+	return false;
+}