[Bug 5648] Handle gzip content-encoded content

http://www.w3.org/Bugs/Public/show_bug.cgi?id=5648

           Summary: Handle gzip content-encoded content
           Product: LinkChecker
           Version: 4.3
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: checklink
        AssignedTo: ville.skytta@iki.fi
        ReportedBy: ot@w3.org
         QAContact: www-validator-cvs@w3.org


In current checklink code:

 my $ce = $response->header('Content-Encoding');
 ...
 elsif (defined($ce) && $ce ne 'identity') {
    # @@@ We could maybe handle gzip...
    $failed_reason = "Content-Encoding for <$request_uri> is '$ce'";
  }

Indeed, we could handle gzip. Recording this as an RFE.