Don't track snooze period

From Joost Houben on 2015/10/08 06:56:59 +0000

Currently, the snooze period is tracked by the app as sleep time. However, most of the time, I’ll be pretty much awake during snoozing, but still too woozy to actually get out of bed. The fact that the app counts this period towards the sleep duration skews the statistics. I would like an option to stop sleep tracking as soon as the alarm is muted (so either terminating or snoozing).

Copied from original feature request: