Time Limit as an option

[hueyl77]

Add an option to impose a time limit on Nights and Voting for specific games (in minutes).

e.g.

# set 60 minutes time limits
!option time_limit_night 60
!option time_limit_day 60

# to turn off
!option time_limit_night 0
!option time_limit_day 0

[chrisgillis]

Should probably default to off.

[DitoRaharjo]

i think there is urgent need for day/night time limit, cause this will take care afk player.