Show only accepted talks in conference scheduler
Show only accepted talks in conference scheduler

Fixes #328.

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