As Red Hat, we need to adhere to product security guidelines to avoid security issues for RHODS customers.

This story is to address a session management flaw as outlined in the threat modeling doc (item 9): https://docs.google.com/document/d/17sGYy8P3HSCpO7QeSSORU3ZUYkUNGQq-z3xJDrUyadM/edit#heading=h.wmz2ucb7quu3

When a user's credentials are revoked for the RHODS dashboard and JupyterHub, the system should automatically log users out of the service. Some scenarios:

1) User session times out

2) User no longer has access to RHODS based on removal from RHODS user or admin group

3) User's OpenShift access is removed