Log Message:
py-django-contrib-comments: updated to 2.0.0

2.0.0:
Removed support for Python 2.
Renamed zh_CN to zh_Hans and zh_TW to zh_Hant to match Django Chinese \ 
translations naming.
Confirmed support for Django 3.1 and avoid deprecation warnings.
Confirmed support for Python 3.8.
Updated Arabic and German translations.