Improved URL contents retrieval; Support for update on save
Newer versions of the webmention spec allow update pings
Newer versions of the webmention spec allow update pings, and there's no reason why pingback can't get this too...
Todo notes
Need to pass the source, *doh*
Webhook ping versioning
Lets not bother with extract... it doesn't really work too well, and MF2 parsing gives much richer information...