Pontoon: Update Italian (it) localization of AMO
Pontoon: Update Italian (it) localization of AMO

Localization authors:
- Sara Todaro <sara.todaro@mozillaitalia.org>

kumar303/addons-server,aviarypl/mozilla-l10n-addons-server,mozilla/olympia,wagnerand/addons-server,eviljeff/olympia,mozilla/olympia,harry-7/addons-server,psiinon/addons-server,psiinon/addons-server,aviarypl/mozilla-l10n-addons-server,mozilla/olympia,aviarypl/mozilla-l10n-addons-server,tsl143/addons-server,bqbn/addons-server,eviljeff/olympia,wagnerand/olympia,diox/olympia,kumar303/addons-server,wagnerand/addons-server,mozilla/addons-server,wagnerand/addons-server,tsl143/addons-server,bqbn/addons-server,harry-7/addons-server,wagnerand/olympia,lavish205/olympia,kumar303/olympia,eviljeff/olympia,lavish205/olympia,wagnerand/olympia,mozilla/addons-server,psiinon/addons-server,mozilla/addons-server,aviarypl/mozilla-l10n-addons-server,atiqueahmedziad/addons-server,atiqueahmedziad/addons-server,atiqueahmedziad/addons-server,tsl143/addons-server,mozilla/olympia,lavish205/olympia,harry-7/addons-server,harry-7/addons-server,kumar303/addons-server,kumar303/addons-server,bqbn/addons-server,psiinon/addons-server,tsl143/addons-server,eviljeff/olympia,mozilla/addons-server,wagnerand/olympia,lavish205/olympia,atiqueahmedziad/addons-server,wagnerand/addons-server,diox/olympia,bqbn/addons-server,kumar303/olympia,diox/olympia,kumar303/olympia,kumar303/olympia,diox/olympia