Added 'door', 'bridge', 'spawn' actors and 'trap' event.

Yeah!
Updated hump with git version.
Added some tweening to 'sign' and Camera.
Every registered object must now have a name.

I find it more versatile to debug. Probably.
Removed 'love.run()' line.

This call made the game load itself again at the end.
Completely rewritten collision detection.

It is now PERFECT. Collision resolution though, is still not.
Background color is now set directly from Tiled.
Updated map with brand new tiles.