s/0.12/0.13/
Update start/end dates.
Update scripts with the new servers.

It's not clear at the moment whether CDO and RHF will be tourney-usable,
but let's be optimistic for now.
Update nem_eligible.txt.

It will need to be updated again shortly before tourney start. Query used:
!lg * won playable !dj !lo s=char o=-char format:"${.}" join:" " ?:N<=7
Rules changes.

Moving the old Lugonu banner away because we need a new one.