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
Factor out preference-in-storage check to overridable method.

Change-Id: I2fff3192802f8a180330fda66388eda394334a5a
frameworks_base: Update Japanese translation

Core: add missing entries from CM-10.1
SystemUI: add cm_strings.xml from CM-10.1

Change-Id: Iaf10e271e1373c71fbb5e79e7a73a87c465e8963
notification wallpaper moved to tdsettings