Don't override the (correct) default for SRCS or MAN1.
Replaced bogus Lite1 (?) Id by $Id$. The key server files were
mis-imported so it is hard to tell where they came from, but at
least in Lite2 they don't have useful Makefiles, and I rewrote
most of the Makefile.
This is the program used to loadsecret keys into the keyserv on the
local host.
Note: on some platforms, keylogin is automatically invoked by
/usr/bin/login. We don't have any burning need for this yet.
