BPO::DB: factor out library from script
bin/bpo-first-by-user: new program

This shows newly created entries and pages that are the first things
posted by their author since the last time this program was run. The
idea is that this can be run from cron every minutes, to give admins
chance to see things that might be spam without having to wait for
someone else to notice them on the site.

Most entries are not spam, of course; even most entries posted by
first-time users are not spam. But all spam users who post spam must
by definition be first-time posters; so looking a little harder at
first-time posts seems like it might be a reasonable way to reduce
the length of time that spam sits on the front page.
script/live-sidecar: new script

Contains the configured paths for running bpo-sidecar in live usage.
script/live-first-timers: new script

Contains the configured paths for running bpo-first-by-user in live usage.