Instead of getting a complete 'filename' from an URL and splitting that
into 'name' and 'extension', the new approach gets rid of the complete
version and renames 'name' to 'filename'. (Using anything other than
{extension} for a filename extension doesn't really work anyway)
Example: "https://example.org/path/filename.ext"
before:
- filename : filename.ext
- name : filename
- extension: ext
now:
- filename : filename
- extension: ext
- another irrelevant micro-optimization !
- use urllib.parse.parse_qsl directly instead of parse_qs, which
just packs the results of parse_qsl in a different data structure
- reduced memory requirements since no additional dict and lists are
created
- The file extension of the first image had been used for all further
images
- API responses can contain invalid characters, which cause the XML
parser to fail (http://seiga.nicovideo.jp/user/illust/26377934
contains several \x08 characters)
- fixed html.unescape not being available on Python3.3
- removed inconsistent test result
- added username/password pairs for authenticating extractors
