it's arguably the only place we _should_ use it. Add create_tempdir() to
tempfile.c and use it to create a temp directory for IP maps. This
should fix bug 3530.
(This still doesn't work on IE 8 / Vista here. IE gives an access denied
error in OpenLayers.js, but this is a separate issue).
svn path=/trunk/; revision=28920
no longer needs util.c, so it no longer includes routines that use
host_ip_af(), so it no longer needs to define its own host_ip_af().
That also means dumpcap.c no longer needs to include <sys/socket.h>.
svn path=/trunk/; revision=17278