Upgrade to release 0.16:
- Add ``.unflatten()`` method to ``Graph``, ``Digraph``, and
``Source``. Add standalone ``unflatten()``.
- Make ``Source.__str__()`` return the ``.source`` instead of the
``repr()`` (like ``Graph`` and ``Digraph``).
- Render with ``dot -K<engine> ...`` instead of ``<engine> ...``
internally.
- Add documentation hint to archived upstream version for Windows.
- Re-render most documentation graphs with Graphviz 2.44.1.
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Acked-by: Trevor Gamblin <trevor.gamblin@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
