StopForumSpam Resync

Data not received from the API should be resynced through the distributed CSV-files from stopforumspam.com

Notes:

• Instead of storing SFS full data files directly in the primary database, they should get stored separately and every time the database gets synced, old data should be wiped. In this way, removed entries from SFS would disappeare each time we get new data (which helps auto removals).
• Each time DNSBL are rendering new zone files, the databases will be read separately. In this way, syncs will be better.
• Only data from SFS that are brought via the API will reach the primary blacklist
• Make sure that the wiping procedure only wipes removed addresses. By doing this, we may have a chance to store an "added timestamp", so we can keep track of when it was added through SFS-datatables