Tmdb3 augmenter: remove candidates where no matching director is found

differently to the defunct Tmdb augmenter it considers alternate names
and ignores the case
Tmdb3 augmenter: switch filtering by year / director around
Tmdb3 augmenter: fix for more then one alias per director
Tmdb3 augmenter: warn about movies with no director on file
Merge branch 'master' of github.com:dekarl/nonametv