Make sure to delete the NetAddrs array.
Allow a display locate to fetch IPv4 and IPv6 addresses.
Add 'allV4Map' option to XrdNetUtils::getAddrs().
[XrdNet] Add const qualifiers to some of the methods in XrdNetAddrInfo
[XrdCl] Allow for creating both AF_INET and AF_INET6 sockets
[XrdCl] Make the preffered IP stack configurable via NetworkStack envvar
[Man] Document the IP stack selection via envvar
[XrdCl] Remove unused variable
[XrdCl] Return an error when no correct response to kXR_dirlist was received
[XrdCl] Warn about partial reponses by printing to std::cerr
Correct test to see if a subscriber has an IPv4 address. This caused
locate to fail when being requested by an IPv4 client.
Differentiate between a locate failure because the file was not found
or that none of the servers were IPv4 reachable.
Add support for returning a hostname in a locate response. This
only implements this now in xrootd and is ignored by the cmsd.
Full support awaits longer message buffers.
Add a cmake option for disabling usage of atomics.

Without this, if a platform has atomics support detected, there isn't
any simple way for a developer to disable them for debugging purposes.
[XrdCl] [::aaa.bbb.ccc.ddd] is not a valid IPv6 address but [::ffff:aaa.bbb.ccc.ddd] is
[XrdCl] Improve handling of invalide responses
Add support for locate name response.
Use proper protocol when returning IP6/4 address.
Add login tag when incomming connection is IPv4.
Various corrections in locate handling relative to IPv6/4.
Make sure to screen out multi-homed machines when "+" is specified.
Merge branch 'disable_atomics_on_demand' of https://github.com/bbockelm/xrootd-1
[XrdCl] Remove the XrdSysDNS.hh include