Cleanup previous PR

We cant rename recipe files as that will break users Fetch news subscriptions
to the renamed recipe. Also optimize the recipe icons and move them into
the icons subfolder. Apply some pep8 cleanup.

recipes/dilema.recipe

@@ -1,6 +1,6 @@
 #!/usr/bin/env  python
 from calibre.web.feeds.recipes import BasicNewsRecipe
-from bs4 import BeautifulSoup
+
 
 class Volkskrant(BasicNewsRecipe):
     title = 'Dilema'

recipes/internazionale.recipe

@@ -1,6 +1,7 @@
 #!/usr/bin/env  python
 from calibre.web.feeds.recipes import BasicNewsRecipe
 
+
 class Volkskrant(BasicNewsRecipe):
     title = 'Internazionale'
     __author__ = 'Cristi Ghera'