These files are supposed to have different permissions (0660 for
btmp and 0664 for wtmp), which isn't possible using a single united
base::newsyslog::config stanza.  Separate them into two stanzas
with the correct permissions.

We keep running into other packages that depend on it, which makes
removing it unnecessarily difficult.

Also remove the old one for right now until the mistake is purged
everywhere.

newsyslog no longer sets up a weekly command to tar up
/root/.history-save and removes /etc/newsyslog.weekly/audit if it
exists.  We're no longer using per-user history files and we're
letting bash handle managing the length of the history file.

newsyslog now creates btmp and wtmp writable by group utmp, matching
the operating system defaults.

newsyslog no longer attempts to clean up sysklogd cron jobs or remove
the old /etc/newsyslog.daily/syslog file installed by ancient versions
of stanford-server.

General coding style cleanup.

This is the (old) master branch along with the fixes to the
cron file permissions that Russ made.