* Create datecount plugin
* Fix plugin import
* Update datecount format
* Create datecount test
* Remove outdated comment
* Remove unnecessary datecount export condition
* Update test config
* Move get_date_counts into DateCountExporter; misc changes
* Use --format instead of --export in datecount test
* Update datecount test to include configs
* Better datecount test
* Remove old tests
* Change 'datecounts' to 'dates'
* Update authors to "jrnl contributors" to comply with GPL3
* Include jrnl email address with contributors
* Include GPL notice in jrnl --version
* Apply consistent copyright and license to all Python files
* Add copyright and license to documentation
* Add copyright and license to docs theme
* Wiping poetry cache to try to resolve a test issue
* Testing with Python 3.9.0 in attempt to bypass GitHub Actions failure in 3.9.1
* make format
* Exclude Windows Python 3.9 build which is failing due to a GitHub Actions problem
* Modify testing to get around this 3.9 issue...
* Fix exclude
fstring wip
Run pyupgrade
fix broken pyupgrade fstring
run pyupgrade on plugin dir
fixup! remove py2 remnants and use mocks in tests
small print bugfix
The file=sys.stderr was part of the format(), so an error got printed to
stdout
Drop use of codecs package
Use builtins.open() instead
fixup! remove py2 remnants and use mocks in tests
