Swatter now makes karts lose lives in 3 strikes battle

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@9559 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/items/swatter.cpp

@@ -203,6 +203,7 @@ void Swatter::squashThingsAround()
         {
             kart->setSquash(kp->getSquashDuration(),
                             kp->getSquashSlowdown());
+            World::getWorld()->kartHit(kart->getWorldKartId());
         }
     }