Mafia/Triad can't chat with other players during party

[smokeysm]

-Mafia 20 beta- (12) - maf cant party.SC2Replay

Mafia/Triad aren't part of the night chat when party host throws a party. This makes it easy to identify Maf/Triad because they are the only ones who can't chat at night during the party.

For reference, see 1-smokeysm point of view during the first party - there is no chat because I'm the only mafia.
The next day 2-Samsung Galaxy is able to identify all the evils because they were the only ones not able to contribute to night chat.