public static bool IsConfigurable(string folderPath)
{
//enhance: would make sense to just work with books, but setting up books in tests is currently painful.
//When we make a class to make that easy, we should switch this.
//BookStorage storage = new BookStorage(folderPath, null);
//return (null != FindConfigurationPage(dom));
return RobustFile.Exists(Path.Combine(folderPath, "configuration.html"));
}