When editing a meeting forward the full_day setting set in the form up to the database

Fixes https://fedorahosted.org/fedocal/ticket/74
If the meeting is set to be full day and the start_date = stop_date then the stop_date is a day later
Forward to the API the stop_date set by the user when editing a meeting
Merge pull request #62 from fedora-infra/fix_full_day_edit

Fix full day edit