- "real instances" (no more clonage) .. a lot simpler
- better system to manage instances (same fo embbeded or redirected)
- pyside: each window now have a reference (.parent) to the main instance (the one which starts all)
- a lot of little fixes
- more pytest coverage (mainly main features)
- _render() -> render()
- resolve query params when redirecting to another instance for match the constructor