Experiments on a higher level rest directive for Morepath.
Thoughts:
- we need Dectate to allow overriding sub-directives generated by a composite directive in the same app, without conflict.
- in an overridden directive, do we need access to the originally generated directive somehow?
- the collection management functions should be a whole bunch of functions registered for the collection class and the item class. We can introduce a specific type of collection base class that has functions registered for it, for instance a SQLAlchemy or Pony collection. We can also do this for items (dump, load), using the SQLAlchemy and Pony item base classes, but instead we could also use the serializer for this and have the serializer registered for the collection.