imdb_list import from HTML  page instead RSS feed

imdb watchlist rss feed is broken right now and can't be sure when and
if it will be back up. this will now parse the html page for movies and
create entries.
Then these 2 lines become
```
params['start'] = start_movie
page = task.requests.get(url, params=params)
```
And we get to delete a bunch of intermediary variables too.