Concurrency fix + new scripts

Fixed some situation involving concurrency upon using getCharacters()
from MapleMap, added scripts and other bug fixes.

scripts/npc/world0/2101002.js

@@ -0,0 +1,12 @@
+/* 	Eleska
+	Ariant	
+*/
+
+
+function start() {
+    cm.sendOk("Stay away from me, if you don't want any danger.");
+}
+
+function action() {
+    cm.dispose();
+}