Gopher client tests
       
       
  HTML Link with "h" type (with "URL:" selector)
  HTML Another link with "h" type (with "URL:" selector)
       Seems Lynx requires _something_ in the "server" field, even
       if it's "0" or "null". And Overbite Android requires a
       non-zero port number.
       
  HTML Link with "h" type (with obsolete "GET /" selector)
  HTML Another link with "h" type (with obsolete "GET /" selector)
       Lynx supports this. Other clients may or may not.
       
       Link with "w" type (with a plain URL selector)
       Another link with "w" type (with a plain URL selector)
       Seems Bombadillo, w3m and Lynx don't support the "w" type.
       
  HTML Mail link with "h" type
       Bombadillo doesn't support mailto: URLs (it can't handle
       email anyway). w3m and Lynx seem to handle this fine. (w3m
       fetches the HTML redirect page, but the email address can be
       selected from that page.)
       
  TEXT Gopher client tests (URLs)
   DIR Gopher client tests (selectors)
       
  TEXT /%09 selector
  TEXT /%20 selector
  TEXT /%25 selector
  TEXT /%2525 selector
       Lagrange before version 1.19 has a bug with "%25" in a selector.
  HTML See Issue #728
       
  TEXT /hash#file selector
   DIR Gopher menu test