- [DOC] Added a 5th parameter to dns_get_record, a boolean that tells whether to...

- [DOC] Added a 5th parameter to dns_get_record, a boolean that tells whether to activate
  "raw mode". In this mide, $type (2nd parameter) is the numeric type of the record, and
  the responses are not parsed -- the "type" element will be numeric and there will be
  a "data" element with the raw data of the response buffer, which the programmer will
  have to parse.
- Fixed bug in the Win32 implementation of dns_get_record, where the 3rd and 4th arguments
  would only be filled if the 2nd ($type) was DNS_ANY.
- [DOC] The 3rd and 4th parameters can now be NULL (changed their arginfo).