EHO-62 name properly determined when start or end date or both are empty
EHO-400 Customer criterium can be individually cleared
EHO-400 Project criterium can be individually cleared
EHO-400 Department & user criterium can be erased
EHO-400 integration test added
Merge branch 'EHO-400_IndividualClearCriteria' of https://github.com/tedeling/ehour into EHO-400_IndividualClearCriteria