wifi: Allow configuration of country code for wifi

Wifi country code handling is a nightmare - Most retail devices
have region customization in /system for each country a device
is shipped to.

This doesn't work very well for a firmware like Cyanogenmod,
where we try to support all target countries with one firmware
package.  For whatever reason, with newer Broadcom drivers/
firmware blobs, the old trick of using a universal region code
(ccode=ALL in nvram_net.txt) does not seem to work.  Who knows
what the deal is for other wifi chipsets.

The good thing is that wpa_supplicant has a standardized
cross-chipset method for setting the region code, and we
use that here.

Change-Id: Ia9f5133f61f56d89ccb290e37a393f5de507e1cf
Fix for F/C in WifiConfigInfo

1. Turn off Wi-Fi
2. Open the dialer and input *#*#4636#*#*
3. Navigate to Wi-Fi information -> Wi-Fi config and observe "Unfortunately,
Settings has stopped" dialog.

Change-Id: I6ed59fc157e9bd8a46e00184b91a1a9f0412d198
Signed-off-by: Shuhrat Dehkanov <uzbmaster@gmail.com>
Force closed at settings application when delete Misc files

NullPointerException in MiscFilesHandler.java, missing check to
ensure that dir.list() does not return null.

Change-Id: I13aac19949826b385610fd1fee2befb411684023
Option "None" replaced "Open" in Wi-Fi AP Settings of Wi-Fi Hotspot

First option in Wi-Fi AP settings of Wi-Fi Hotspot, "Open", is
changed to "None" since "Open" is not localized.
"None" (@string/wifi_security_none) already in use in other
Wi-Fi related screens and it is already localized in
the existing source code.

Change-Id: Ic79b20e3b0f094e064dd4758d8a03d67a208389a
Bluetooth MAP (Message Access Profile) Upstream Changes (2/3)

PORTED FROM CM10: http://review.cyanogenmod.org/#/c/26393/

Incorporates updates to the Bluetooth MAP profile from Code Aurora's
Android Enablement Project since we initially pulled in from their
gingerbread to CM7 last year. This patch addresses bugs with the
current MAP profile, adds a UI request for message access approval
when pairing, and adds additional error checking and logging.
Confirmed to fix date and "Download" function of Ford SYNC Gen1.
Pulled in from the codeaurora jb branch.

Change-Id: Ie35067f389ced8e86433a991776b4a8e1f1ce963