Bot Camp AI improvements

This patch enhances bot camping and fixes an unlogical decission of
the bot when to camp or continuing camping!

* Make bots not camping when they shouldn't (if their team doesn't lead,
if they picked up some powerful items, e.g.: Haste, Quad etc.).

* Make the bots camping decission not only 'before' they start to camp.
Now the bot also decides if it is good to continue camping!

* Make the bots camping behaviour easier modable.

* Faster code checks.