Add initial clear command.
Convert to using Guzzle streams directly.
Remove leading slash when using class names as strings.
Use assertInstanceOf() correctly.
Add EmbeddedParser and FixedTableFactory.
Add source as argument to ProgressInterface::progress().
Add HasTableFactoryTrait.
Change ConfigurationException to be a RuntimeException.
Add serializable state tracking mechanism.
Make Guzzle transport attempt to clear caches.
Enhance StreamStub.
Add Database transport.