Buff Restrictions

Limited AOE buffs to capships and Amp buffs to vehicles with atleast 1
amp.
Removed Ammo`Return

Didn't need it anymore since modding ammo`mod to return ammo as well as
subtract.
KOed

Updated checks in various combat commands to see if the calling or
target player is KOed.
Initial Damage

Started working on damage. Sorted out some details with Xeero. Ready to
code.