Markdown Filter not processing Windows files correctly (\r\n)...

[jhargrave-straker]

Reproduce by converting test files line breaks for markdown integration (RoundTripMarkdownIT): find . -type f -exec unix2dos {} + Be sure to remove these lines:

// FIXME: These fail with Windows (possibly MAC) newlines
        // MarkdownFilter has problems when handling non-Linux newlines
        addKnownFailingFile("test-html-block-newline.md");
        addKnownFailingFile("html_list_original.md");
        addKnownFailingFile("html_table_changed.md");
        addKnownFailingFile("admonitions.md");
        addKnownFailingFile("html_list_changed.md");
        addKnownFailingFile("html-table-w-empty-lines.md");
        addKnownFailingFile("html_table1_original.md");

Mac \r linebreaks should be tested as well. Linux \n seems to work correctly, despite having updated the parser to handle \r\n and \r