You can clone with
Implemented data-preserving DynRefs (the same way ExtRef does it) so …
you don't need to work inside the database monad to make new dynamics.
This allows cleanup of the shell, so operations can all be inside Ext
instead of FST.
Removed one of the TODO notes... since I just did it.
Added another TODO note.
Added a TODO file, documenting the brittleness of some of the current…
… implementation decisions.