* added dev-venv target

* added subextract model

* added nltk dependency

* flake8 ignore line break before binary operator

* moved dev dependencies up

* added nltk punkt download

* added nltk download to dev-venv; pytest and pytest-not-slow target

* added subextract training pipeline

* added optional xpath namespaces

* log failed xml file

* use recover parser option

* added subextract app

* start subextract server

* renamed to autocut

* declare slow and very_slow pytest markers

* make autocut main test as slow

* fixed post data

* updated README

* also build non-dev image as part of ci

* added pytest.ini to dev image

* Bump flake8 from 3.5.0 to 3.7.3

Bumps [flake8](https://gitlab.com/pycqa/flake8) from 3.5.0 to 3.7.3.
- [Release notes](https://gitlab.com/pycqa/flake8/tags)
- [Commits](https://gitlab.com/pycqa/flake8/compare/3.5.0...3.7.3

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

* removed direct dependency on pycodestyle

* ignore W504 flake8 rule (changed recommendation)

* changed noqa comment (old one was ignored)

* added pylint check

* added pylintrc to docker image

* reduced accessive apache beam debug logging

* configured pylint, addressed linting

* enabled flake8 checks

* downgrade pycodestyle to 2.3.1 due to error

* switch to 4 spaces indent

* autopep8

* more flake8

* added new line to .flake8