asn: initial commit
asn: save ASN to connection note
asn: made 'providers' a config option

so it can be altered when data sources come and go (like dnsbls)
asn: replace 'note.js' with 'results'
asn: added docs
asn: added research notes to docs
asn: s/logprotocol/logdebug/
asn: added TODO note, about ASN from geoip
Merge pull request #473 from msimerson/asn

Merged - thanks.   In the interim for asn.routeviews.org; you might want to try the node-dns package and possibly use that instead.