Remove create-schema, tidy up drop-schema-cascade
Move sequence-op-name from model to util op-name
Improve doc strings and return values of PG functions
Fix of sequence to db-op-name change
Export model interface symbols at compile time

Remove :export-p from mode op macros definitions and uses.
Add export-list arg to ensure-model-package.

Compilation of lisp files with cat:insert will never work unless
the _compiler_ can see insert is an exported symbol of cat...
This works for package compile, at least

But it's not what I want
This also works, and is an improvement
Better still...
This works too, and is getting acceptable
This works too!  Good.
Clean up bake-interface% lambda list and doc string
Add db specials to bake-model (and change name)
Break up create-model backend (and change name)

We only want it to be a macro to keep consistent naming with
bake-model...
db qualify create default schema and sequence funs

We don't want to trample on Postmodern's naming scheme.
Rename PG functions

Do not want to trample on Postmodern namespace
Remove db default functions

Committed to binding the special variables now
Make create-model-backend a function

Now we can safely bind *db-schema* and *db-sequence*
Rename NAME to MODEL for key interface functions

I think this is a more standard usage.
Change NAME to SCHEMA, SEQUENCE in PG functions

This is a more standard usage, at least in Postmodern.
Working, but is all this macrology a dead end?