Added flip and shake to snooze

both the actions flipping the phone, and shaking the phone can do one of the following operations
1. do nothing
2. snooze the alarm
3. dismiss the alarm

PatchSet2 : Removed pesky whitespace
PatchSet3 : Fixed compile error

Change-Id: I93fccee1f4e7d82f273c344ce33c45a230c44526