Programme metadata feed changes

[Mark Carroll]

A couple of weeks ago I had someone in BBC Design & Engineering mention
to me that tomorrow they are due to switch from the XML, etc. metadata
views to JSON ones. So, tonight I plan to fetch the latest and run some
downloads in case get_iplayer isn't working tomorrow. I figured I should
mention this here in case this Tuesday's still the switchover date and
others wanted to do the same. I guess --pid might work in either case.

-- Mark