[svn] * src/database.c,src/protocol.c,src/util.c,src/util.h: The latest IETF article format draft draft-ietf-usefor-article-06.txt recommends that Xref: references contain the FQDN of the server. We were using the host name without the domain. So split the routine used for obtaining the FQDN from protocol.c into util.c, and use it when adding Xrefs.