Squashed commit of the following:

commit ba38a30d84ad8ec85705fbe318100067d5dd275d
Author: Pietro Lo Iacono <StraightEdge89@live.it>
Date:   Fri Mar 28 19:36:39 2014 +0100

    Update strings_footer.php

    Improved italian translation on the footer.

commit 6c7595a0a829dade8c86967e79e2ebd45263a87a
Author: Pietro Lo Iacono <StraightEdge89@live.it>
Date:   Fri Mar 28 19:34:03 2014 +0100

    Update strings_main.php

    Improved italian translation on the main page.

commit eb28f082c27e784e09b4398bf90bee007af96bdd
Author: Pietro Lo Iacono <StraightEdge89@live.it>
Date:   Fri Mar 28 19:22:07 2014 +0100

    Update strings_header.php

    Improved italian translation.
Merge branch 'master' of https://github.com/StraightEdge/peercoin.net