Contexts and attribute operations

[Rod Widdowson]

> Is AttributeRecipientContext still in the plan? I had thought that was
> being removed, but it's still referenced by lots of the plugins. Or is
> that TBD?

It's all TBD.

The plan is to remove it, preferably by week-end.  Once I have the metadata
navigation sorted there will be no reason for it to exist and it will be
removed alongside the (testbed only) code to summon it up.