Rationale: get rid of the dependency on kth-krb4 on NetBSD>=1.5 systems.
For older systems, we provide full functionality via a (now buildlinked)
kth-krb4.
INSTALL -d => INSTALL_*_DIR
INSTALL => INSTALL_*
Beware that only invocations are changed that don't set special
values for owner, mode or group!
Cleanup suggested by zuntum@IRC
Convert most MESSAGE files to new syntax (${VARIABLE} gets replaced,
not @VARIABLE@, nor @@VARIABLE@@).
By default, substitutions are done for LOCALBASE, PKGNAME, PREFIX,
X11BASE, X11PREFIX; additional patterns can be added via MESSAGE_SUBST.
Clean up some packages while I'm there; add RCS tags to most MESSAGEs.
Remove some uninteresting MESSAGEs.
xdm-krb4 now has an option, -nostrictkrb4, which allows it to fall back
to non-Kerberos authentication if the KRB4 authentication fails. (Much
wanted by sites with a mix of Kerberos and non-Kerberos users).
Version 3.3.6.1 fixes some minor issues and nits (like using snprintf
instead of sprintf, and using newer functions, like krb_afslog_uid_home
instead of krb_afslog) in greeter/verify.c.
Most changes are from Assar Westerlund (assar@sics.se, assar@netbsd.org),
some from myself.
