Hi all,
Here's some AI improvements for 0.2 (experimental branch).
Should make them behave themselves more and shoot you in the back less.

Changes
AIs now check their line-of-fire for friendlies.
AIs now avoid driving into other tanks. This uses an in-house system more suitable for vehicles than the avoidance used in 0.127.
Fixed custom battle setup freezing when starting up under certain conditions.
Fixed the fire-group selection GUI overlapping with the battle overlay tip.
Faces with zero thickness or area are no longer visible or included in the damage model, for technical reasons.
General stability improvements.
- Hamish
