Fix requirements dependencies
Upgrade dev requirements
Added tag 0.7 for changeset 2f9cee2e1778
Bugfix: allow string lists for aka, affix and company.
Added tag 0.6 for changeset 96453628a20b
More tweaks to tox and CI build.
Update build.yml to invoke tox.
Add tox to dev requirements.
Don't use develop mode with tox (hides installation bugs).
Bug fix: install bbdb.lark as package data.
Added tag 0.5 for changeset 398d104d33c6
Move pytest settings to tox.ini.
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