Made the map more exploratory.

![image](https://cloud.githubusercontent.com/assets/1202938/4505951/0087b300-4afd-11e4-9103-914b99ace5a5.png)

Made any rooms you haven't visited be invisible on both the minimap and the mainmap, and added a pulsating blue blip to show where the player has to go.

Also, reimplemented the old man at the end of the game. He is still really hacky; I wish I got more done formalizing the game state. There is always the weekend, right?