collector: Set a 60 seconds timeout on collector
Add reddit collection

Auth is handled by django-social-auth
Now requires praw as dependancy
Add management command to collect urls

two new management command:
reddit_collector
twitter_collector
Missing reddit migration
remove old twitter script
Update a littlebit the readme
semantism: Fix flickr oembed
semantism: Increase imgur oembed size
Update gitignore
remove debug
Fix status_code in exception
collector: fix twitter_collector with user class variable
webfront: correct wrong pagination
psycopg2 is required, add it to base requirements