DeviceKeyHandler: Increase handler priority

Allow DeviceKeyHandler to have higher priority when handling user keystrokes.

Patchset 2: Update commit message
Patchset 3: Rebased
Patchset 4: Fixed needed ref
Patchset 5: Rebased

Needed by http://review.cyanogenmod.org/#/c/35064

Change-Id: I60871052aaae0af7d864113f00dbdf9ba5200f2e
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
aapt: add check for untranslatable "string-array"s

Change-Id: Id884af0505c0bcdfa20b400fcdd54f699f8ef38f
Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>
aapt: allow toggling "errors instead of warnings"

* This patch makes the default behaviour same as AOSP,
  treating untranslatable strings in any but the default
  locale as warnings.
* Setting the environment variable AAPT_ERROR_ON_WARNING to
  anything will make those warnings, errors.

Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>
Change-Id: I7da98d277495a7646ad64ba2f7e6a6bf14290f98