Fix layout issues with increasing volume option.

- Ellipsize 'increasing volume' check box so even long strings aren't
  wrapped to two lines
- Adjust margins so they're consistent with the day buttons right above

Change-Id: Icfdefa837e84ff7db51376ca1d938dc1876f8da3
Remove redundant background from ClockFragment

Leftover from commit 7bcc2d8ce2951a8f5451e93a5192b7ae04564de0. Caused
some severe overdraw.

Change-Id: I338e4132c02466eb53bd073433db2b5fbfcb3d1f
One small line fix for Russian lang
Add empty view when no alarms are set

Change-Id: I1443da1c0c4b6b17e80871d62784f61a087a71d5
Feature: Bedtime calculator

Adds a bedtime calculator to each alarm. The calculator works by
counting backwards in sleep cyles (90 minutes), then calculating the
times you'd need to go to sleep in order to wake up in between them. It
can help you wake up feeling less groggy. The calculator displays four
suggested sleep times ranging from 4.5-9 hours of sleep.

Change-Id: I7ad932da7955d8f058392562ffc85c9af0f5206f