- protocol version and answer from server from HTTP status
  line
- try to mimic all options of check_http
- implement full ranges in -c and -w (used by anybody?)
- provide FTP functionality
- make gengetopt stderr handling and plugin first line
  stdout work together (error handling is bad currently
  if the plugins is called with illegal arguments)
- make use of bandwith measurement functions of libcurl
  for QoS checking options
- drop-in replacement for strsep, where it is missing
- handle error codes and set nagios plugin status
  accordingly