Code review comment for lp:~edwin-grubbs/launchpad/bug-535430-needspackaging-timeout-part2

I assume the changes to database/schema/security.cfg the needs to be reviewed by either Bjorn or Stub. I had to add permissions for db users that had been inserting into the SourcePackagePublishingHistory, since that will cause the DistributionSourcePackage table to be inserted into or updated. The permissions have been changed for the db users "lucille", "uploader", "queued", and "processmail".

I forgot to create this merge proposal with the previous branch as the dependency, so you will see the same schema changes that have already been reviewed.