hdrezka show/series translators table new format

Hi
It seems that Hdrezka site have new translators table format. New shows have `<a>` hrefs in the table, but old was `<li>`.
`Черное зеркало` show, for example, have new format and plugin hangs with "fault parseDOM" on it and give empty video list.

I made quick fix, and I can pull request, but it's ugly I think:
https://github.com/JoyHusky/kodi/commit/b8e290de5afc1555fd6f7709762f09b21d75254f