Wrong worker rotation when the resource is directly at a drop-off point

[AlThePhoenix]

(As reported on the forums: http://www.wildfiregames.com/forum/index.php?showtopic=18229&page=2#entry300151)

Workers who are ordered to bring resources look the wrong way when they don't need to walk to the resource because it is directly at a drop-off point.

Can be reproduced by placing a drop-off structure directly at a resource (e.g. a storehouse at a tree) and making a worker gather from that tree. Make sure he stands directly at the drop-off structure while doing it.

[Freagarach]

Two reasons:

• cmpUnitAI doesn't issue a turn command towards the target when returning resources.
• Even when we would add the turn command, turning is instant so one wouldn't notice.

[Freagarach]

Trac modified describtion needlessly again -_-. (Dropbox links are dead by the way.)