+Implementation based on minidom doesn't understand namespaces, it just shows
+them among other attributes. ElementTree-based implementation doesn't show
+namespaces at all. Implementation based on lxml.etree shows namespaces in a
+separate file "namespaces".
+
+It is useful to have a top-down view on an XML structure but it's especially
+convenient to extract text values from tags. One can get, for example, a
+base64-encoded image - just walk down the VFS to the tag's directory and copy
+its text file to a real file.
+