New version of SQLAlchemy’s Firebird backend

Lele Gaifax calls for testing the new version of Firebird backend for SQLAlchemy. The source is attached to this trac ticket.
SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL.
It provides a full suite of well known enterprise-level persistence patterns, designed for efficient and high-performing database access, adapted into a simple and Pythonic domain language.