Fix error when this is disabled by another plugin

on startup, when Server.SetConfigSetting doesn't exist yet. It's pretty
harmless though as the xpcall catches it.
Report the game the error is from

In case there's ever any specific errors to one game.
Avoid 0 length votes
Fix weird design decision

This includes the connecting player in the total...
Merge pull request #405 from Person8880/develop

Fix a few minor things