Lines different only by newline character don't come up as different in HTML mode only #38

2.0.0p247 :014 > Diffy::Diff.new("one\ntwo\nthree\n", "one\r\ntwo\r\nthree\r\n").to_s
 => "-one\n-two\n-three\n+one\r\n+two\r\n+three\r\n" 
2.0.0p247 :015 > Diffy::Diff.new("one\ntwo\nthree\n", "one\r\ntwo\r\nthree\r\n").to_s(:html_simple)
 => "<div class=\"diff\">\n  <ul>\n    <li class=\"del\"><del>one</del></li>\n    <li class=\"del\"><del>two</del></li>\n    <li class=\"del\"><del>three</del></li>\n    <li class=\"ins\"><ins>one</ins></li>\n    <li class=\"ins\"><ins>two</ins></li>\n    <li class=\"ins\"><ins>three</ins></li>\n  </ul>\n</div>\n" 
2.0.0p247 :016 > Diffy::Diff.new("one\ntwo\nthree\n", "one\r\ntwo\r\nthree\r\n").to_s(:html)
 => "<div class=\"diff\"></div>"