New release notes: SA-04:03, device driver megapatch, new file

New release notes:  SA-04:03, device driver megapatch, new file
descriptor allocation code, udav(4), TCP segment reassembly queue
update, EXT2FS large file support, geom_concat, indent(1) -ldi,
ifconfig(8) name, ip6fw(8) -n, libalias(3) new API, newfs(8)/mdmfs(8)
-l, re-entrant resolver(3) interfaces, savecore(8) large coredump
support, script(1) stdin bugfix, getopt_long(3) changes, gdtoa
20040118.

Modified release notes:  Cross-reference resolver(3) rather than
resolver(5).

A number of these release notes were obtained from (or supplemented
by) Mark Johnston's weekly FreeBSD cvs-src summaries.