SystemUI: show date on 2 lines in status bar

This allows showing of the full day of the week, and removes
the blank space above the date (which always felt strange to
me when clicking it to access the calendar).

It also fixes a spacing issue on smaller screen devices that
causes the quick settings button to be partially chopped off
when the AM/PM clock settings are enabled.

Before: http://imgur.com/UzkFe
After: http://imgur.com/UXoBJ

Change-Id: I10b59f2facf973c0255fd4c002af6caf19194190
QuickSettings: Allow custom off-status strings for translates

- GPS
- Torch
- Wi-Fi AP

PatchSet 4:	Removed all translations.

Change-Id: Ibc7fa50c8b1ee87170bd4b58866e45c63655a192
frameworks/base: Fix to avoid crash when the tab is not set from app

As the current tab is not set from application, getChildTabViewAt
returns Null value. Added a condition which checks whether mSelectTab
is set to first Tab.

(cherry picked from commit 9be6755efb149b22c36aa3eb7cc4ffe7e765e08a)

Change-Id: I11c77ca96333e2663d28db1b5fdb46602bd9e745
CRs-Fixed: 321176
Quick Settings: Fix flip-to-settings animation

Bug is reproduced as follows:

1. close the notification area while Quick Settings is showing
2. open the notification area, so that the notifications show
3. click the button on the top, to switch to quick settings.

Notice that only half of the animation is played. Having some
notifications shown helps visualizing it.

This bug was introduced by

I3cab45f72fe3c5fa40d4631fc6a84ea7bfe51bd1
http://review.cyanogenmod.org/29118
(Yes, it was me. Sorry.)

Change-Id: I31510617bf7e78fa09305a9c323b6ce30c058218