Zombie Fortress 0.4.5 Development

Planned changes for 0.4.5 from 0.4.4:
- Auto balance will activate at the end of a round, instead in the first 5 seconds of a round starting.
- Fail-safe created to ensure teams are always auto-balanced before or after a round starts.
- Zombies will automatically win when a round ends.
- Minor fixes in help messages.