Pyrseas

* Added workaround for incorrect assumption that 'public' schema is
always present (issue 4).

* Added support for delimited (or quoted) identifiers, e.g., those
with embedded spaces, upper case characters, etc. (except for SQL
keywords) (issue 5).

* Added support for:

- AGGREGATE functions
- DOMAINs
- ENUMerated TYPEs
- Functions returning table row types
- INDEXes on expressions (issue 3)
- Rewrite RULEs
- SECURITY DEFINER functions
- TRIGGERs

* Enhanced host/port defaults to use sockets, resulting in noticeable
performance improvement.

* Fixed problem with mapping a FOREIGN KEY in a table with a dropped
column (issue 2).

* Added support for:

- COMMENTs on schemas, tables, columns and functions
- FOREIGN KEY ON UPDATE and ON DELETE actions
- ALTER TABLE RENAME COLUMN and enhanced support for other ALTER
object RENAME statements.
- VIEWs
- INHERITed tables, and by extension, partitioned tables.
- PROCEDURAL LANGUAGEs
- FUNCTIONs.

* Added files for release via PGXN.
* Added support for testing against multiple PostgreSQL versions.
* Fixed cross-schema REFERENCES failure in dbtoyaml (issue 1).

* Initial release

- dbtoyaml and yamltodb support PostgreSQL schemas, tables,
sequences, check constraints, primary keys, foreign keys, unique
constraints and indexes.