"UNKNOWN" links in package manager
From Luke Hamburg on PR 3060:
"I noticed recently that many packages do not have the 'www' field in the database filled, or have it set to UNKNOWN The way the table is built, this causes bad links to be generated pointing to e.g. http://pf.sense/UNKNOWN. This patch fixes it, causing only packages with actual links to get the <a> tag."
merged, leaving to verify once it hits a snapshot.