Format change at "Mobile network type" value

Remove "network type Number" from "mobile network type" value
at "About Phone > Status".

For example value "UNKNOWN:0" became "UNKNOWN"
(if value is "UNKNOWN", the word is localized)

The number ":0" did not add much value to the user.

Change-Id: Iee29fa2ab42f2d6eab5d9dbd6f647087ee382648
Grey out settings icon when it is in disabled state

If engine is not active, its settings icon is disabled in
Settings > Language & input > Text-to-speech output screen.
Currently, settings icons for all TTS engines are shown at
the same opacity. This fix dims settings icons of not-selected
engines.
Make sure that more than one TTS engine are installed on the
target, for e.g., Google Text-to-speech Engine and Classic
Text To Speech Engine (SVOX Classic TTS).

Additionally, since setAlpha() is used in multiple places within
Settings package, moved DISABLED_ALPHA declaration to Utils.java
in order to have single point of reference.

Change-Id: Ifa7de79814a2f4a4aa021cd8621cbfab41655680
Signed-off-by: Shuhrat Dehkanov <uzbmaster@gmail.com>
Fix for battery temperature display

Centi temperature under zero degree is displayed with '-' sign.
Fix this using absolute value in centi degree display.

Change-Id: If4958d9c75c03d1f3ecfd14436fc80dc2fd57860
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