Remove check if there are already runs scheduled.
Remove reschedule part from signals module.
Remove after complete dts reschedule type.
Add the timezone when scheduling a run.
Schedule next run on broadcast. Fix test. Fix front-end code.
Bump version.
Set default for backwards migration of 'reschedule_type' to 'AFTER_SCHEDULE_DTS'.
Merge pull request #65 from brocaar/pre_schedule

Schedule new run before broadcasting the current scheduled run