Portal sound effects + Improved skillbook drops

Added portal crossing sound effect on several scripted portals which were missing it.
Added a few more scrolls on Spindle.
Added several skill/mastery book drops, making "4th job skill questing" somewhat more viable.

scripts/portal/hontale_BR.js

@@ -22,7 +22,7 @@
 function enter(pi) {
 	if (pi.getPlayer().getMapId() == 240060000) {
 		if(pi.getEventInstance().getIntProperty("defeatedHead") >= 1) {
-                        pi.warp(240060100, 0);
+                        pi.playPortalSound(); pi.warp(240060100, 0);
                         return true;
                 } else {
                         pi.getPlayer().dropMessage(6, "Horntail\'s Seal is Blocking this Door.");