server: more verbose logging when testing subprocess termination

server: add more test dependencies to buildout.cfg

server: typo

server: minor code doc

server: improve bad client tests

server: do not need extra test function names in doc strings

server: test with bad client input

server: more bong session tests

server: extend bong session tests

server: various fixes in the bong player

server: fix player (session)

server: initial player control session tests

server: make bong player ready for control by client

server: fix mlib messages from server to client

server: remuco bridge passes library requests directly

server: implement player control methods in remuco bridge

server: new server only tests

server: wifi host name as option

server: exent session tests

server: fix bong test player