Added Italian error doc translations + some cosmetics.

Submitted by: Luigi Rosa <lrosa@mail.hypertrek.info>
Reviewed by: Paolo Campegiani <p.campegiani@libero.it>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@96473 13f79535-47bb-0310-9956-ffa450edef68