update Japanese translations
Settings: update Spanish translations thanks to @SensesXda
Settings: update German translations
fix spelling mistake in qs smaller tile summary

thanks to cvin88 for pointing this out
Hardware keys: dont force enable navbar when hw keys are disabled
cmhw: Use hardware's default value for color enhancement

 * First boot should use the value read from sysfs rather than
   forcing the feature to be enabled.

Change-Id: Ibed5d8f3dc3644f972caf07853ca921c963dacfa
Settings: Create SAR level preference, allow overlay.

Change-Id: I1af616696702f72b8a6276b3b01e940d61735137
Settings: Add missing up navigation in menus

Squashed forward port from cm-10.2

Change-Id: Ia9d51b53df8a3eb4c1b9dee1aeefb0b74eac0fde
Settings: Improve AOSP JA translations

They translated "hotspot" as "アクセスポイント"(access point) but it just gets us confused.
"テザリング"(Tethering) is preferred than "アクセスポイント"(access point) in Japanese translation.
FYI, most vendors fixed these strings e.g. Samsung and Sony.

Change-Id: If9aeaddc1750d1f8432fa4e1cb2e2ffb41f74b0a