remarkably, the examples for concrete and single were still
using classical mappings. Ensure all three examples use
modern declarative patterns, each illustrate the identical set
of query operations. Use back_populates, flat=True for joins,
etc. ensure flake8 linting, correct links and add a link back
from newly reworked inheritance documentation.
Change-Id: I8465a9badbb0eda804f457ccac599f051ee3c27c
to allow ad-hoc display of the source of any file, as well as a "directory listing" structure.
- reorganize examples/ to take advantage of new extension. in particular, keep moving all
the descriptive text for files etc. into module docstrings, taking more advantage of
self-documentation.
- added READMEs to all examples in each __init__.py and added to sphinx documentation
- added versioning example
- removed vertical/vertical.py, the dictlikes are more straightforward
Mike Bayer