Instead of Text::WordDiff, use language-aware MediaWords::Languages::en
Instead of Text::WordDiff, use language-aware MediaWords::Languages::en

Using the language module, clean up (strip spaces and line breaks, etc.)
input text and compare lists of sentences using is_deeply().

Text::WordDiff wasn't stripping whitespace and line breaks so it's not
too useful when dealing with Readability's fluctuations between OSes
(described in d0b39fe9d03e13de7e2a614ba9ff2725062eec94).

berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud,berkmancenter/mediacloud