[MPlayer-dev-eng] [PATCH][DOCS] Italian doc partial update for 0.90

[Diego Biurrun]

Roberto Togni writes:
 > Attached patch to update italian docs to current english version.
 > 
 > Still missing: skin.html, sound.html, users_against_developers.html 
 > (only formatting changes, no new text), video.html.

Thanks, applied.

Diego