CVS version numbers

italian/contact.wml: 1.9 -> 1.10 
italian/support.wml: 1.16 -> 1.17 
italian/devel/website/translating.wml: 1.2 -> 1.3 
italian/distrib/vendors.wml: 1.4 -> 1.5 
italian/international/index.wml: 1.4 -> 1.5 
italian/mirror/index.wml: 1.2 -> 1.3 
italian/releases/potato/index.wml: 1.13 -> 1.14