Support GESTURE_SENSOR input device type with GestureService

* The GESTURE_SENSOR input device type is meant to support touch sensors
  which are meant for gesture input only, very similar to a touchpad,
  but without the pointer capability.
* Define separate service to handle gestures from GESTURE_SENSOR device
  type.

Change-Id: I9b273df2a3cc141774d7f7cd81e43a90ea5b230b

Conflicts:
	Android.mk
	core/res/res/values/symbols.xml
	services/java/com/android/server/SystemServer.java
Hide InputDevice.SOURCE_GESTURE_SENSOR from API

Change-Id: If009e9595fc593594b0e7764669996de137483a1
framework/base: IT translations

Change-Id: I7713dd45668ee9adb489a86560cdcd4bd25ad95b
NetworkController: Hide signal strength icon when no SIM icon is shown

Change-Id: I5c4b43bba1469e14474d20a3627eafa597459e6e
TD_SCDMA signal strength support