Fixing value long_description_content_type in setup.cfg

Bump version to '0.22.8.27'

Update how-to-build-and-upload-a-new-release.rst: be specific in what…

… we upload to PyPI and tell to pip uninstall to not ask for permission

Bump version to '0.22.8.21'

Fix test test_trash_dir_scanner.py

Bump version to '0.22.4.16'

Bump version to '0.21.10.24'

Fix test: test_should_tell_where_a_file_is_trashed

Bump version 0.21.7.23

Update HISTORY.txt and bump version