Badges+ mod support, vote kick immunity, better mvm support and other minor fixes

- Support Badges+ mod's badge rows.
- Pregame plugin now works with MvM.
- Fixed some phrasing issues with notifications in MvM.
- Kick votes can no longer be called on players with a higher immunity than the player calling the vote.
- The AFK kick plugin now ignores players waiting for team balance.
- Fixed a few bugs when a plugin fails to load, and specifically with the mapvote plugin when it failed to load because of a bad map cycle.