Many fixes to Coop-Survival mode incl.:
- AI-player enemies are not revivable and do not revive other players anymore
- Correct pixel perfect size for enemies
- Stomp move does not affect other players anymore
- Homing arrows do not target other players anymore
Other fixes:
- Radius in which players are getting burned from fire/fire arrows lowered - to reduce players being on fire almost constantly
- Rapid-fire powerup arrows cannot hurt owner anymore
+ Many more fixes and improvements
