Input RlsLog

Adds support for ​rlslog as a source.

Problems

• Multiple torrent links per entry is untested.
• If one rlslog entry contains multiple different entries (rarely).
• Untested on other content besides movies.

Example with imdb filtering:

rlslog: http://www.rlslog.net/category/movies/dvdrip/
imdb:
  min_score: 6.1
  min_votes: 4500
  reject_genres:
    - documentary
    - horror
download: ~/torrents

This would download all dvdrips that have at least 6.1 score on imdb and at least 4500 votes. Movies with genres documentary or horror are rejected. See imdb filter for more information.