'/?&#' -> '/?#' and '?&#' -> '?#'
According to https://www.ietf.org/rfc/rfc3986.txt, URLs are
"organized hierarchically" by using "the slash ("/"), question
mark ("?"), and number sign ("#") characters to delimit components"
- fix episode listings for french comics
- allow input URLs without explicit scheme
- add 'lang'/'language' metadata
- use str.format() instead of '+' to assemble URLs
The webtoons extractor can extract episode and entire comic (all
episodes) from webtoons.com.
All the logic of the extractors should be trivial except for a couple
of kludges needed:
- `ageGatePass' cookie is always set to avoid possible redirect and stop of
extraction, especially in the comic extractor
- The image URLs returned by the episode extractor could not be fetched
directly and the `Referer:' HTTP header needs to be passed to fetch them
Close#593.
Mike Fährmann
