Ferreteria/v0.41/odata

This system is experimental, and replaces/updates the old content system (which was really part of 0.2 or 0.3).

Concepts

Every node

• is a record in the node table
• can have zero or more 'leafs
  • There's generally no point to having zero, but no reason to forbid it.
• can have a (node) type which points to a handler-class
  • so that when we're looking at a group of unspecified nodes, we know how to handle each one

Every leaf:

• has
  • a data type
  • a name (unique within the node)
  • a value
• is like a single field in a single record