Trim empty lines from URLlist files (fixes #29)
Trim empty lines from URLlist files (fixes #29)

Many text editors add a terminal newline to files on save.
This was previously being interpreted as an invalid URL.

Fixed by filterng the URLs loaded from `--urllist` to remove
empty entries.

rasata/quickscrape,rasata/quickscrape,ContentMine/quickscrape,ContentMine/quickscrape