* commit '853abdcd':
  Fixing SHELL issue in Dockerfile
  SSA-6324: trying a different way of running setup
  SSA-6324: All tests pass when run locally. In Docker container, tests that exercise the CLI all fail, unable to find the "datafetcher" entry_point.
  SSA-6324: tests pass when run locally; some fail in Docker container. Committing what I've got so as not to lose it after tearing my hair out for a day and a half.
  SSA-6324: trhing to resolve package conflicts
  SSA-6324: 'docker build' is running into package conflicts
  SSA-6324: placate Pylint somewhat; this time -really- get rid of the properties file after the Docker image is built; look what Pathlib can do!
  SSA-6324: using Pathlib instead of os where possible. added a little more documentation.
  SSA-6324: pytest on datafetcher_test.py executes in a Docker container. capo properties file is copied to the docker build directory, then deleted.
  initial commit; datafetcher_test.py passes pytest

SSA-6324: All tests pass when run locally. In Docker container, tests that exercise the CLI all fail, unable to find the "datafetcher" entry_point.

SSA-6324: tests pass when run locally; some fail in Docker container. Committing what I've got so as not to lose it after tearing my hair out for a day and a half.

Added SConstruct file for testing scons; added @dlyons' Jupyter notebook file for generating Makefiles

SSA-6324: placate Pylint somewhat; this time -really- get rid of the properties file after the Docker image is built; look what Pathlib can do!

SSA-6324: pytest on datafetcher_test.py executes in a Docker container. capo properties file is copied to the docker build directory, then deleted.

* commit '2a9d9b0f':
  initial commit; datafetcher_test.py passes pytest

Tests all succeed when executed in IJ.

* commit 'd12bbd8e':
  SSA-6325: a few import and path tweaks were necessary to get all the tests to run from the command line
  SSA-6313: data is a functional Python project with an entry point for the data-fetcher.