Zipsource is not handling files in subdirectories

[marcovisserFurore]

When you use ZipSource , for example to extract summaries, then it will not traverse subdirectories. Even by forcing it in the settings, it will not handle files in subdirectories.

So

var zip = new ZipSource(@"some.zip", new DirectorySourceSettings() { IncludeSubDirectories = true });
zip.ListSummaries();

will not list the summaries of files in the subfolders of the zipfile.

[ewoutkramer]

Fixed by #902