Strictly speaking, rps_rules has no state.

Less typing less errors in tests.

Test rps3:why/2 and rps5:why/2.

rps_rules:why/3, use it in rps3 and rps5.

Slightly more consistent naming of variables in rps_rules:parse/2.

Start countdown in lobby if there are more than 1 player (was: 0).

Add possibility to use rps_nickserv's api with a Pid.

Return pid if no nickserv can't find nickname.

Linebreak.

Now lobby waits for other players to join or starts without them. Before it waited for a fixed number of players.