Italian translation update

[Dirk Hohndel]

Filippo <filippom at gmail.com> writes:

> Hi,
> some fix in Italian translation.
> It also contains improved translation strings, after seeing the
> localized version in action
>
> Signed-off-by: Filippo Moser <filippom at gmail.com>

Thank you for the updates. You make my life easier if you do two things:

a) do a git pull right before you start working on something - this way
you start from the latest version of a file.
b) send me the output of git diff instead of the whole file - that way I
can simply apply your changes to the tree.

All that said - I'm very happy to take complete translation files with a
Signed-off-by: line, just as you sent it. I can do the rest of the work
locally. Doing a) and b) above simply makes things easier for me.

I applied your changes and pushed them out.

/D