Revert "Do not sort items in internalize_rssfeed"
Revert "Do not sort items in internalize_rssfeed"

This reverts commit a80241ced3be843f04c0da2f2a4177eb76b3961c.

Fixes #650.

newsboat/newsboat,der-lyse/newsboat,der-lyse/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,der-lyse/newsboat,der-lyse/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat