Update non mappable articles (Autostrade)

Autostrada A17 was renamed as A14 and A16 in 1973, according to
https://it.wikipedia.org/wiki/Autostrada_A17
Autostrada A2 was renamed as A1 in 1988, according to
https://it.wikipedia.org/wiki/Autostrada_A2_(Italia)
Autostrada dei Laghi is now A8+A9+A8/A26, according to
https://it.wikipedia.org/wiki/Autostrada_dei_Laghi
Raccordo autostradale is non mappable.
Update non mappable articles and subcategories (Università in Italia)
Update non mappable articles (Siti archeologici d'Italia)
Update non mappable articles (various)
Remove duplicated subcategory "Trafori ferroviari in Italia"
Merge pull request #12 from dforsi/master

Update non mappable articles and subcategories and remove a duplicated category