Total and available fields missing in Settings storage menu

After formatting SD card or inserting an SD card the total and
available space fields in Settings storage are missing.
This fix add those fields after SD card has been mounted.

Change-Id: Id6c1d1963effdb9656c8eb1c567b913bc4d98bd2
Data traffic details: use proper string for System UID

Android System ≠ Android OS (second is a "kernel" process).
Mind the numbers:
http://goo.gl/YnFvHa (actual "system" process)
http://goo.gl/XwoISO ("system" process displayed as "kernel")
http://goo.gl/sJ9yMi ("kernel" process with different traffic data)

Depends on http://review.cyanogenmod.org/63190

Change-Id: I6f6662b7adaee069ec5f29c6926b8fbce796917d
Display BTH connected status correctly

This patch removes incorrect condition.
(to not use LocalBluetoothProfile#isPreferred())
This condition uses the priority that already disconnected profile,
so this codition always returns false.

To verify this issue:
1. Turn on Bluetooth.
2. Pair and connect to BTH(A2DP/HFP)
3. The display now says "Connected"
3. Disconnect HFP profile
4. The display still says "Connected" but it should say "Connected (no phone)"

Change-Id: I9e2bfa6d23bf1be7587c9556b4b05459d02c4817
Update MobileNetworks Icon

Match to QS tile icon

Change-Id: I416f0c9da40973532f79dc2ae7a46a274591a948
Fix the Mobile networks icon in Settings

-shrinked a little
-centered

See the screenshots:  https://drive.google.com/folderview?id=0BxY75MbFAKsXMzF3YXJZdUhVNm8&usp=sharing

Change-Id: Ia77dbf4417a3c4dd09adc11990406e97b482ae46
Settings: check if NfcAdapter is null

according to the javadoc, getDefaultAdapter(Context) can return null, if
no NFC adapter exists.

check if adapter is null before trying to call isEnabled

Change-Id: I7ff5488cc3b53ce9785c3e46effcf29dc31fe0ef