Closing query builder added and opening query builder moved to own namespace.
Query executors are propagated from very beginning to the end via CommandBuilder.
Unit tests moved to another subdirectory to distinct integration tests.
Integration test with usage of PHPUnit introduced.
Output resolvers removed.
Used namespaced types referenced by absolute name in LIMIT.
bugfix: Identifier does not quotes numeric values.
FROM, WHERE and related helpers fixed to follow current commands structure.
SELECT FROM query as in integration test added.
Output tester removed.
refactoring: Removed unused links to object describers.
Identifier bringer class described a bit.
Two builder methods renamed to reflect return values.
fix: Any query FROM alias can be created.
FROM and alias follow new command structure, FROM covered by tests.