Merge pull request #35 from otemnov/original

Use first image from article top_node
Heroku web
Add nltk
fix reddit top image
Configuration for ignore excessively long/wide images ration
Stop using icon as top_img. It should be separate property - icon
method renaming
rebase to upstream
Fixup parsing of html with encoding:
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE html>
<html>
<head>
</head>
<body></body></html>
http://www.thespoof.com/news/world/118671/the-taliban-plot-to-kidnap-camilla-parker-bowles-is-foiled
Fixup xpath for cases when head metadata is placed wrong in body
example:
http://www.dead-frog.com/blog/entry/maria_bamfords_new_album_ask_me_about_my_new_god_coming_july_16
JSON ensure_ascii=False
Parse encoding fix