Italian translation for Superuser

Change-Id: I4b852939ce4d68ecd12c6a9eff416551fdabe185
es_ES: Added and modified spanish translations

Based on http://review.cyanogenmod.org/#/c/25128/

Change-Id: I01acc71e72abc5097ce74ba127270a9f428b36f3
Merge remote-tracking branch 'cm/cm-10.1' into jb-4.2