FoV algorithm uses player's previous location when determining objects

[pkuehne]

When moving, there is always a shadow behind the player. Yet when the player stands still (.) it disappears. It seems the LoS algorithm thinks the player is still standing in the old location and therefore thinks they're an obstacle and puts things behind them in shadow.

[pkuehne]

This is fixed by changing fov_system.cpp#L45 to include && e != player