Nascent partial start on permissions
Beginnings of PermProxy
Add JSON persistence utils
Rewrite TypedAttribute to be more solid, allow nested containers, and save CLR objects as JSON
Get the impexporter working fully again.
Move to custom namespaces on Climoo-persisted items to avoid getting stuck with one namespace structure
Improve output of TypedAttribute.display for CLR types
Finish getting permissions working in-world
Merge branch 'permissions' thus far, to get JSON persistence stuff mostly

* permissions:
  Finish getting permissions working in-world
  Improve output of TypedAttribute.display for CLR types
  Move to custom namespaces on Climoo-persisted items to avoid getting stuck with one namespace structure
  Get the impexporter working fully again.
  Rewrite TypedAttribute to be more solid, allow nested containers, and save CLR objects as JSON
  Add JSON persistence utils
  Beginnings of PermProxy
  Nascent partial start on permissions