Doors fixed (0.0.6)

Finally changed the name of the commit. Small changes this time. Fixed a few things, but also added the [view {object}] command.

Changes:
*If a player command was given without a focus, the game would throw an error.
*The treasure was being placed in a room that had at least one door, no matter what the "door" was (so walls counted).
*Treasure item was placing a torch.
*Treasure renderer was painting over entire room.
*Player is no longer static, since dungeon is.
*Room entry text is now independent from room description text.
*[move {direction}] changed to [move/go {direction}]
*Added [view doors] command.
*Added [view inventory/inv] command.