New balance vote

- Removed vote scramble, it was a failed idea.
- "Random" vote now supports three modes of operation, pure random, past
scores based and NS2Stats ELO based if available.
- You can also have an instantaneous switch that doesn't block the teams
by setting BlockTeams to false, RandomOnNextRound to false and
InstantForce to true.
- Fixed PM and goto not ignoring target permissions.