validate stg_guiport on form
Still trying to get this to work correctly.
port stuff is sorted out... I think.
Change port back to charfield.
Oops, this should have been an integer field.
Modified to use different port if specified.
Reload on port change.
Don't set default port.
Leave port blank.
fix link so mount -t ntfs uses ntfs-fuse (ntfs-3g)
