Complete missing translations
Show thumbnails of video tutorials
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
Update non mappable items
Update README.md

- add country POLY file to requirements
- explain --show_coordinates_from_osm option
- explain data/wikipedia/non_mappable/redirects usage
- how to translate
- more credits
Do not create pages with regions and map if not requested

* remove hardcoded regions names, read them from config.cfg
* do not create regions page and subpages if
there is not a list of regions names in config.cfg
* do not create map page if not --show_link_to_wikipedia_coordinates
* remove redundant code for index pages rendering
Update .gitignore
Minor fix to README.md