Add comments to explain how the system's ticket codes work.
Add comments to explain how the system's ticket codes work.

Had to reverse engineer this a bit, since the code otherwise
doesn't include any infos on this.

malemburg/epcon,malemburg/epcon,artcz/epcon,EuroPython/epcon,barrachri/epcon,matrixise/epcon,matrixise/epcon,malemburg/epcon,matrixise/epcon,artcz/epcon,artcz/epcon,barrachri/epcon,malemburg/epcon,artcz/epcon,matrixise/epcon,PythonSanSebastian/epcon,EuroPython/epcon,barrachri/epcon,EuroPython/epcon,artcz/epcon,PythonSanSebastian/epcon,artcz/epcon,PythonSanSebastian/epcon,malemburg/epcon,malemburg/epcon,PythonSanSebastian/epcon,matrixise/epcon,matrixise/epcon,barrachri/epcon,PythonSanSebastian/epcon,EuroPython/epcon,barrachri/epcon,PythonSanSebastian/epcon,barrachri/epcon