This patch adds a maintenance script that generates the missing
tags_approval entries based on the tags_all table, and then recalculates
the weights for both tags_approval and tags_index tables.
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io> Signed-off-by: Owen Leonard <oleonard@myacpl.org> Signed-off-by: Josef Moravec <josef.moravec@gmail.com> Signed-off-by: Nick Clemens <nick@bywatersolutions.com>