SystemUI: Notification Reminder New Layout && Fixes

Set mCurrOrientation on init

Reimagine Notification Reminder:
	Set beneath normal header.
	No more need to guess size...
	Needed update since apparently
	many users have issues here.

Music Sleep Timer && Reminder:
	set time to start of minute,
	not where we are now.

Change-Id: I9a80cd8b7d4cc6205328f737a3d202eacd1b2dd4