* make it possible to set the colors of the graphs from outside * more tests * Needs patch(es) to GD::Graph: - graphs with angled text at the bottom (like 45° since the email addresses or filter rules are pretty long) - the linear and yearly prediction numbers overlap, this should be handled better by GD::Graph (like placing the lower _below_ the line instead of _over_ it and thus inside the upper number) * When the archive is newer than the index, re-create the index automatically. * SA scatter and daily_score graphs.