• HTML::Form now exposes the 'readonly' and 'disabled' attribute for inputs.
  This allows your program to simulate JavaScript code that modifies
  these attributes.
  
• RFC 2616 says that http: referer should not be sent with https: requests.
  The lwp-rget program, the $req->referer method and the redirect handling
  code now try to enforce this. By Ville Skyttä ville.skytta@iki.fi.
  
• WWW::RobotRules now look for the string found in robots.txt as a case
  insensitive substring from its own User-Agent string, not the other way
  around. Patch by Ville Skyttä ville.skytta@iki.fi.
  
• HTTP::Headers: New method 'header_field_names' that return a list of
  names as suggested by its name.
  
• HTTP::Headers: $h->remove_content_headers will now also remove the
  headers "Allow", "Expires" and "Last-Modified". These are also part of
  the set that RFC 2616 denote as Entity Header Fields.
  
• HTTP::Headers: $h->content_type is now more careful in removing embedded
  space in the returned value. It also now returns all the parameters as
  the second return value as documented.
  
• HTTP::Headers: $h->header() now croaks. It used to silently do nothing.
  
• HTTP::Headers: Documentation tweaks. Documented a few bugs discovered
  during testing.
  
• Typo fixes to the documentation by Ville Skyttä ville.skytta@iki.fi.
  
• Updated tests.