bugfix for 2 edit_column issues (can delete now whole days and day is not removed when last time is removed)
bugfix for 2 edit_column issues (can delete now whole days and day is not removed when last time is removed)


kellerben/dudle,jlpoolen/dudle,moba/dudle,mroi/owncloud-dudle,moba/dudle,mroi/owncloud-dudle,jlpoolen/dudle,jlpoolen/dudle,kellerben/dudle