simulator: fixed bug of broken goal calculation at a draw
backend: correctly display 404 when querying information about non-existing tournament

This could only happen when restarting the server during a simulation, though.
worker: make sure to always at least send input back
simulator: fixes and improvements to makefile
backend: removed accidentally commited debugging stuff
worker: removed tracking of file simulation_job_config

This can not contain meaningful defaults anyway and only proves to be a hassle when updating worker machines.