Django-server-status

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- Remove long_description from package (46)

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- Fix description handling for packaging (43)

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- Remove comment which is incorrectly parsed (41)

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- Modified output of error log
- Update django-server-status to fix deprecation warnings (37)

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- Update __init__.py
- Added application certificate health check (34)

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- Fixed assumption that celery will always use redis
- Fixes for Django 2.0
- Fixed typo by changing redis to PostgreSQL in log.error when checking PostgreSQL connection