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.

wz/Quest.wz/Say.img.xml

@@ -64785,7 +64785,7 @@
       <string name="0" value="The new hunting season has begun! I am planning to set-up a stand here at the El-Nath Market, selling #rleathers#k of the most fine quality. And for this, I am counting on you to bring all these leathers here, obviously for a #bvery nice reward#k. If you miss that season, you&apos;re not a serious hunter. It&apos;s that important. You know, I can give you a special tip on how to hunt effectively. Are you interested?"/>
       <imgdir name="yes">
         <string name="0" value="Oh hoho... Surely you do. As a hunter in training, you should get accostumed with the uncertainties that surround us. So, take this list of leathers I want you to bring, and bring them here, ok? If you pass this test, you will not regret it!"/>
-        <string name="1" value="You will need firstly regular #b#t4000021##k in a bunch of 60. In #rLeafre#k, hunt for some #b#t4000264##k. In #rMu Lung#k, hunt for some #b#t4000281##k and #b#t4000295##k, these are widely appreciated around here, and quite rare to find."/>
+        <string name="1" value="You will need firstly regular #b#t4000021##k in a bunch of 60. In #rLeafre#k, hunt for some #b#t4000264##k. In #rMu Lung#k, hunt for some #b#t4000281##k and #b#t4000295##k, these are widely appreciated around here, and quite rare to find. In #rVictoria Island#k, hunt some #b#t4001372##k, despite their pungent smell they are quite the spice."/>
         <string name="2" value="Finally, #b#t4032475##k. Normally their leather are not very consistent. However, once we are in open hunt season, they have some utility for adorning things. Said all that, good luck on your hunt and be safe."/>
       </imgdir>
       <imgdir name="no">