[2/2] OmniGears: Add back navigation bar customization

Change-Id: I4321a8337627f770e20a28361f2b1e6f2958e936
OmniGears: Update NL translation

Change-Id: I05ed733e31bd4701c0a19db14c1edb94c41fec9a
Merge "[2/2] OmniGears: Add back navigation bar customization" into android-4.4
[4/4] OmniGears: Audio Themes Settings

Change-Id: I8d9be84a55c892f159359b6fe47d1c9249bc0326
Merge "OmniGears: Update NL translation" into android-4.4
Merge "[4/4] OmniGears: Audio Themes Settings" into android-4.4
Merge remote-tracking branch 'omnirom/android-4.4' into android-4.4

Conflicts:
	res/values/custom_strings.xml
	res/xml/bars_settings.xml