Add new -o option to bin/haraka
Bump version
Update data.headers.js

Removed quotes from 'undefined' in ll. 17/37 to prevent error for non-existing config file.
return after next() in the whitelist checks
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'