add inclusion of curl_memory.h

adjust preprocessor symbol definition check relative to resolver specialty

PKTSIZE might have been already defined in arpa/tftp.h

from hostip.h to setup.h in order to allow proper inclusion in any file.

This represents no functional change at all in which resolver is used,
everything still works as usual, internally and externally there is no
difference in behavior.

also says so. I also made the list of protocols get sorted.

s/RTPDATA/INTERLEAVEDATA/

'note' in most description as it is mostly useless.

removal of Curl_addrinfo_copy(), Curl_addrinfo6_callback(), and
Curl_addrinfo4_callback()

libcurl options for controlling what to get and how to receive posssibly
interleaved RTP data. Initial commit.

the code more curl-style

killing a sockfilter process the actual PID from the pid file is used and
not the one returned by open2() which might be different.

indicates that only one of the two possible sockfilter processes should be
killed.  Valid values for this parameter are 'main' and 'data'.

generates warning 'Use of uninitialized value in scalar assignment' with perl
versions older than 5.10

Adjust environment vars setting and restoring from test definition.

Avoid using strftime in torture sub.

identical names but different paths properly

  HTTP Cookie: header _needs_ to be sorted on the path length in the cases
  where two cookies using the same name are set more than once using
  (overlapping) paths. Realizing this, identically named cookies must be
  sorted correctly. But detecting only identically named cookies and take care
  of them individually is harder than just to blindly and unconditionally sort
  all cookies based on their path lengths. All major browsers also already do
  this, so this makes our behavior one step closer to them in the cookie area.

  Test case 8 was the only one that broke due to this change and I updated it
  accordingly.