post v1.2.0 upgrade:
(this is harmless to run, so when in doubt just run it to be safe)
echo "alter table rules add column active bool not null default 0;" | sqlite3 alerting.db
echo "alter table rules add column warn_on_null bool not null default 0;" | sqlite3 alerting.db
echo "alter table rules add column alias text not null default '';" | sqlite3 alerting.db
