Valley redux

While I'm still not finished, I am about 90% done. I just wanted to get this out since you can finally kind of play it all the way through to the end now, and I wanted to subject myself to some testing. 

So the story is that Cornelius blocked the exit out of VoL to Gay Island to stop the flux of illegal immigrants (explained by an NPC I have not added yet). If you go all the way past Tacotown, the player notices that the exit is blocked. If you talk to the guard there (not added yet) he will explain how none can exit the valley anymore. He also reveals the existence of the 'sandpits', a secret tunnel used by some residents to smuggle 'questionable substances' out of the valley. He says that talking to the NPCs will reveal clues about its location. 

Of course, it's entirely possible the player can just muck around and find the secret entrance all on his own, or the player talk to the town NPCs first before talking to the border guard, thus exiting the valley without even knowing the backstory, but that can't be helped. Anyways, while I think this could have been done much much better, I will kill myself if I have to make another level so I kinda lazied out at the end, so I apologize for the sudden decrease in quality of the later levels.

Files changed:
- 9 new levels
- Lots of NPCs and their images
- Change healthpot to healthpotion
- Get rid of the stick chest in Black Caverns
- Change mariachi band, frog, and spider HPs and damages

Lots of thanks to reddfawks for the awesome sprites and protuhj for the spider (dropbear) code