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

Conflicts:
	res/values/strings.xml