Continuation of https://github.com/ppy/osu-server-spectator/issues/406
Operations in question being:
- (un)locking rooms / `!mp (un)lock` (prevents players from changing
team, will also include slots when slots are implemented)
- rolling / `!roll` (frequently used in coin toss type situations, will
receive nice animation to go with it)
Bartłomiej Dach