First cut at functioning game filters.

The basics work - a drop down of filters to chose from that will combine
sensibly and provide buttons to remove said filters. Feels like a lot of
wheel re-inventing has been done but there we go. It's also just enough
to work to get things working, there's a lot of low hanging refactoring
fruit laying about now.
Show least popular combos of the smallest amount.

That is if there's more than 10 of combos that were on played once in
the given time frame, show them all. This is a bit ugly in reality but
should be addressed by a new (unwritten) aggregates page.
Linkify a couple of things.
Move period filter into partial.

Don't think it's as useful on players so just keeping it on the front
page and games for now.
Use Net::HTTP::FollowTail in keeping-up-with-the-logs.

This makes scaling to multiple logs doable otherwise having $logs * 2
processes was going to get fiddly real quick.