No longer running as nobody

2019.8

- Doesn't use nobody user

Ownership of /app

- Adjusts ownership of app

- Updated redis

Python 3.8.0

• Also sets PYTHONUNBUFFERED

Cleaner HTML response

• Better for demos/curl examples

More robust error handling

• Handles basic exceptions from Redis and Pickle-DB

Used pickledb if Redis isn't available

• Can now be used to demo persistent volumes (mounted at /data)

Refreshed underlying requirements

• Flask 1.1.1
• Redis 3.3.7

An official release

• A working demonstration