CMK-59

TitelImprove output of relative timestamps (since, ago, in)
KomponenteGUI
Datum2018-02-20
StatusDone (Won't Do)
KlasseStory


Sometimes it is not clear whether the time is in past or future, for example on "last check" and "next scheduled check". The latter one can happen to be in past. We might need to add 'in', 'since' or 'ago'