The "bag of bugs" release

This is mostly a bug fix release.

One bug in particular requires a slight change for any uses of "oschema" paradigm. The schema file should now provide all types, not just types considered in the schema. This is needed in order to resolve references to types that are defined in other schema. The "omodel" will provide the entire array of types as the all_types attribute while types remains those that are targeted for whatever defining the template expresses. The "path" based filtering that is needed to distinguish these two sets was previously in place.