WebCore 2.0.3 Ashriel (Bugfix Release)

• Argument processing moved out of web.core into extension mutate handlers. Features improved rich unflattening of query string and form encoded body parameters. Configurable behaviour. For details, see: web/ext/args.py
• Extensively documented access control list extension validating endpoint security and return value permission using context-aware predicates.
• The ability for extensions to define additional callbacks for collection.
• The DatabaseExtension (formerly DBExtension) has been moved into its own repository.
• Content negotiation endpoint return value serialization, with pluggable dumps registry.
• Complete unit test coverage.