Added blacklist.rb which will now match facebook/twitter.
Added blacklist.rb which will now match facebook/twitter.

Factlink/factlink-core,daukantas/factlink-core,daukantas/factlink-core,Factlink/factlink-core,Factlink/factlink-core,daukantas/factlink-core,daukantas/factlink-core,Factlink/factlink-core