Actor support, now requires MW 1.34+
Massive internal changes here, all code interacting with e.g. user_stats table via the UserStatsTrack class will need to be updated.
Most classes accept a User object in the constructor, the notable exceptions being:
- UserStatsTrack -- prefers currently an actor ID but accepts the old (UID, user name) combo; in the future this'd hopefully accept a User but that's easier said than done
- wAvatar class -- still only takes user IDs; this is largely due to the fact that avatar file names include the user ID so making this accept something else is easier said than done