Removed AFK commander eject

- It wasn't working as intended, probably best to leave it to the eject
vote.
- Added "FallbackMode" to voterandom, lets you specify which sorting
mode to use if ELO fails.
- The map vote plugin will force everyone to the ready room on an end of
map vote or when the map is set to cycle.
Merge pull request #135 from Person8880/develop

Removed AFK commander eject