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.
Fixed pet Snail not expiring properly (being removed from inventory when the time's up).
Broadcasted code update for most of the missing portal sound effects for portal scripts. It is expected for all scripted portals now to play the sound effect when traversing it.