Documentation for Room class
Renamed "boss door" to just "door", updated refs
Added Door class and updated Room to use them, and MapRenderer

Now you can see the Doors if debug rendering is enabled. Doors open and
close. The sequence is correct for when you travel through the doors.
Renamed 'boss' to 'door' in level JSON

Doors don't always lead to a boss.
Add Door constants for timing and size
Fixed warning for unused exception in MapLoader
Added DoorEventData, for door opens and closes
Integrated door events into game state, +sound

Playing door sound effect!
Fix for VS2010 intellisense errors

Not sure if I want to keep this or not
Merge pull request #119 from zackthehuman/master

Door implementation, no graphics, but SFX happen during transition!