Add filter by gamename.
Add hostname ban.
Rename left percentage to stay percentage for clarity.
Add total game time (SUM(playingtime)).
Add time limit, so it doesn't completely fail if it hits PHP's time limit.
Make name lookup sorted by descending activity time, and increase limit 40 -> 100.
Sort alias by activity time.
Update W3MMD category list constant.
Fix include/host.php to use PDO.
Add ability to host with observers, and also extra information in host_add.

host_add: specifically, includes number of times hosted and map size now.
Hide stats strip actions by default.