SystemUI: reactivate WiFi activity indicators

One of the recent commits (MSIM) removed the wifi service listeners
in NetworkController.java. This commit adds it back again.

Change-Id: I03bea814fac82bfe76a51cde6c29f25887f56e12
core & Keyguard: ES translations

- CAF refactor
- Added ApsOps translations

PS3: Fix duplicates

Change-Id: Ic4c4b6857506c8df15042b45f37d7d2145ff9c2e
Runtime toggle of navbar

This adds the framework support for enabling the Navigation bar
on devices with hardware keys. It is toggled from Settings, and
depends on device-specific support for the KeyDisabler hardware
control

Change-Id: I88fecb2ca1e8613591c327a93f53909b00239cd8
Signed-off-by: anerik <anerikgames@gmail.com>

Conflicts:
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java