- Fix the test requirements to pull in only what's really needed
- The cheroot is hard requirement by upstream specification so require it

- only recommend but not require python-cheroot

- version update to 0.51
* Update setup.py to pack tests directory and publish to pypi.
* New session store MemoryStore, used to save a session in memory.
* Should be useful where there are limited fs writes to the disk, like
flash memories. #174
* Fixed: not support samesite=none. #592
* Fixed Python-3 compatibility issues: #574, #576.
* Support tuple and set in sqlquote().
* Drop support for SQL driver pgdb. It was dead, you cannot even find its
website or download link.
* Drop support for SQL driver psycopg. The latest version was released in
2006 (14 years ago), please use psycopg2 instead.
* Removed function web.safemarkdown. if it's used in your application, you
can install the Markdown module from pypi
(https://pypi.org/project/Markdown/), then replace web.safemarkdown() by
markdown.markdown().
- deleted patches
- 0001-webpy-572-enable-python-3.8.patch (upstreamed)
- test package

- added back-port patch 0001-webpy-572-enable-python-3.8.patch
for compability with Python 3.8