SlimCenter: italian translation

Change-Id: I756b5eac113c67777dfc26a58d439a9b12ee249d
Use ro.slim.device

  * Drop ro.product.device due to its problematic with unified devices

Change-Id: I95615e2c0edc6edb34280dac5ffb57468aa56955
Signed-off-by: Josue Rivera <prbassplayer@gmail.com>
Merge pull request #2 from SlimRoms/kk4.4

update