Update res/values-it/strings.xml

Changed Cancella >> Annulla (line 098)
Changed Publisci >> Pulisci (line 609)
Changed Publisci >> Pulisci (line 610)

Please correct this lines in the original project, thanks!
Update res/values-it/errors.xml

Changed all >> alla (line 29)
Merge pull request #87 from BigD-Software/patch-1

Update res/values-it/strings.xml