Generate different pages for different locales with path <wtosm_root>/<locale_langcode>/...
Cleanup:
* No need to create the subpages directory anymore
* Removing pageType variable
* Move creation of webpages check
Attribution for flags SVGs (in html/img/lang)
[BREAKING]
* Change default to "do not show the pages in the browser", change the option
--nofx to --fx to show the pages;
* Change default behavious for --save_stats from "ask the user" to "do not
save" the stats, --save_stats option still saves them.
Merge pull request #9 from CristianCantoro/translations-dir

Generate different pages for different locales
Rename option from --fx to --browser
Fix paths

Fix paths of:
* images in legenda and
* main.json file used in non_mappable.html
Fixes #9
Merge pull request #10 from CristianCantoro/webbrowser-stats

Breaking changes to --nofx and --save_stats options