Update affiliations in paper

Merge branch 'dev'

Update URLs in readme and doc

Merge branch 'dev'

Prepare release 0.6

Set number of gunicorn workers to 1 to prevent possible LTI login failures

Delay container restarts by 10 seconds to improve behavior at host reboot

Fix deprecation warning in Kore service

Add update hint on PID limit

Add install script for all optional features

Update RTC install and config scripts

Update jupyter-fs install script

Update TensorFlow install script

Update optional base packages

Add jupyter-resource-usage to base image