Revert last commit, because HITCOUNT_HITS_PER_IP_LIMIT is applied to all objects and does not distinguish objects. Add new HITCOUNT_HITS_PER_IP_PER_OBJECT_LIMIT option which controls how many anonymous hits are allowed from a unique IP per hitcount object in grace period. Disabled (0) by default. If HITCOUNT_HITS_PER_IP_PER_OBJECT_LIMIT = 1, it means that only one anonymous hit is allowed from any IP per object in grace period. This implements logic 'one hit from a user per object in grace period' for anonymous users too, based on their IPs. It's not absolutely reliable, since different users can have the same IP, but it aims at preventing multiple hitcounts from a single IP, who just closes and reopens his browser to start a new session to make another hit. I feel that the latter scenario can be more harmful.