Use importlib.metadata to read app_version instead of setuptools.

Bump version to 0.7.0 & write changelog entry with todays date.

Maintenance release. Drop support for py35, py36, py37.
Add support for py39, py310, py311.

Change project url from bitbucket to gitlab.tuni.

Use 'python-latest' in Jenkinsfile instead of 'python3'. In FSD
Jenkins environment the python-latest always points to latest
installed Python.

Update requirements.txt: upgrade to setuptools 50.3.2, which is the
latest one still supporting Python 3.5.

Add py39 to tox test environments and use it in Jenkinsfile.

Bump version.

Write unreleased changelog entry.

Write changelog entry, bump version and update copyright headers to 2021.

PyPI expects long_description_content_type value "text/x-rst" for
a reStructured README file.

Since the package is available from PyPI, remove the step to obtain
package in README.rst

The interpretation of a literal block in reStructuredText is expected
to be intended, and when used together with a list element, the
indentation should be relative to the text content of the list
element. Indent line 16 for three more characters to make the rst
render correctly.

No version bump since this is a documentation change.

Adds new development tools: Jenkinsfile and
sonar-project.properties. Add py38 environment to tox.ini.

Add project metadata to setup.py, VERSION, MANIFEST.in.

Add licensing information to LICENSE.txt and copyright headers to
every python code file.

Adds new development tools: Jenkinsfile and
sonar-project.properties. Add py38 environment to tox.ini.

Add project metadata to setup.py, VERSION, MANIFEST.in.

Add licensing information to LICENSE.txt and copyright headers to
every python code file.

pprint.py: don't append newline for regular strings. The usual case of a regular string is a traceback, which already has newlines in place.

log_formatter.set_app_config(): raise TypeError for unknown keyword arguments. Test it. Update CHANGES.rst.

log_formatter.py: change defaults for loglevel and logformat. Default loglevel is now WARNING, which is the same as stdlib logging. Default logformat is now %(message)s, which means only the json-object will be included in logmessages. Change tests accordingly.

Make default_ctx_populator module level function, so we may check its existence in push_to_ctx(). Test it.