Quaint beginnings of serverside logic.
Server now sends startgame messages.

Server creates actors representing the summoners, and advertises their
starting position in the gamestart message.

Actor/puppet/Summoner/world interaction getting in shape.
Fix Logic::coord's operator<.

To implement strict weak ordering (bah). Still need to check in the
create_summoner if the Summoner is actually placed on the map. A
separate list of puppets would also be nice.
Terminal now recieves its exes from the server.

Funfun.
Merge branch 'terminal' into networking