Set better default time when converting event from allDay
Previously when event was converted from allDay to the "normal" one, time set by default in the incidence editor was always set to 00:00. Now it is set to the nearest quarter of the current time. End time is set to start + 1h to be consistent with the convertion by drag and drop.
Closes-issue: #119 (closed)
Edited by Slawek Kaplonski