SystemUI: Update italian translation

	Add missing strings in quick settings section
	Add strings for navbar customization

Change-Id: Iac8f668830e415d6011bb380e8b1082e5ca9cf0a
Merge "SystemUI: Update italian translation" into cm-10.1
Allowed translations for off quiethours tile

Change-Id: I93189e9e58c3ff92e252611283b348b51f08039f
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_frameworks_base into cm-10.1