Re-implement orientation aware volume buttons at lower level

Rework of http://review.cyanogenmod.org/31979

Fixes:
1. inconsistent volume button behaviour depending on app in use
   - the buttons not swapped for some NDK/OPENSL ES apps like
   e.g. MX Player
2. the function of volume buttons on external input devices like BT/USB
   keyboards should not be affected by the main unit orientation

This commit finishes http://review.cyanogenmod.org/18273 - use of system
property has been replaced with config push via JNI as suggested during
the original review.

Patch Set 2: Circumvent the need for "keyboard.orientationAware = 1" idc
Patch Set 3: Don't leak implementation details outside InputReader

Change-Id: I19cc60cb0acb0005ab13fa069f52e3d468d694e7
InputDevices: CA translations

Change-Id: Ide9e03fb72e8f4684267afbc7bac920e5e9e4503
SystemUI: IT Translation

Change-Id: I77bddd80011ff9af132095cbb07768068263deb3
SystemUI: EL translations

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I9fe8ca062ad34633eeb6429837057beed2d0c0cb
PackageManager: Limit the platform-key protection to test-keys builds

This block (change I7390b3bdf5289411f7a335c69635bed9f74bbfb3) is intended
to protect the system from abuse of well-known keys. That's not the case
if the system is signed with dev or release keys.

Change-Id: Ifb66f775dd28c577447634ae177442732a18b592
Merge "PackageManager: Limit the platform-key protection to test-keys builds" into cm-10.2
Merge "SystemUI: EL translations" into cm-10.2
Merge "SystemUI: IT Translation" into cm-10.2
Merge "InputDevices: CA translations" into cm-10.2
Merge "Re-implement orientation aware volume buttons at lower level" into cm-10.2
Merge branch 'cm-10.2' into martincz