Style changes
modified:   src/Client.hs
new file:   src/Client/Conn.hs
new file:   src/Client/Loop.hs
new file:   src/Client/Serve.hs
new file:   src/Client/Util.hs
modified:   src/Server.hs
new file:   src/Server/Loop.hs
new file:   src/Server/Users.hs
new file:   src/Server/Util.hs