Core: HU translation

PS2: Rebase
PS3: Typo

Change-Id: I314d9dffffe1ef3a1415bbe0f3aef402066a477c
Factor out preference-in-storage check to overridable method.

Change-Id: I2fff3192802f8a180330fda66388eda394334a5a
Fix hardware home key behavior on wake-up

Change-Id: Ib489e4b8bb1d10591afc96c680c7865d61c959a0
Treat default value that wasn't found as empty value.

Fixes http://code.google.com/p/android/issues/detail?id=33220

Change-Id: If22e8b245f688d922c168aa54c8acf743c0644d7
Core+SystemUI: DA translation

Port from cm-10.1 - minor change from review

Change-Id: I9b98f44cf300d5f72929c78e8aad3c08bee62b21
Merge "Fix hardware home key behavior on wake-up" into cm-10.2
Merge "Core+SystemUI: DA translation" into cm-10.2
Merge "Factor out preference-in-storage check to overridable method." into cm-10.2
Merge "Treat default value that wasn't found as empty value." into cm-10.2
Merge "Core: HU translation" into cm-10.2
Merge branch 'cm-10.2' into martincz