[vfs] The filesystem support table update (http://commons.apache.org/proper/commons-vfs/filesystems.html)

[Ilya Rodionov]

Hello,
I consider it's time to update the filesystem support table.
As I know VFS supports directory listing for many types. incl. FTP and SFTP.
The table is confusing.

Best regards,
Ilya Rodinov.