Anubis v3.1.1

I'm going to go ahead and say that this is the "Fall 2021" release of Anubis. There are a lot of little changes and bug fixes in this version. The main highlights are listed below. Be sure to checkout the contributor page to see all the great people that helped make this release possible.

Some of the bigger new things in this version:

• Anubis no longer relies on github classrooms
• New theia ide images for different courses
• Improved container security
• New lecture notes feature
• Theia ide port forwarding
• Horizontal pod autoscaling for major services

Thank you to all the code warriors that contributed to this release. You can see who these fine people are on the collaborators page.

Checkout the project board to see how you can contribute. Look out for issues marked as good first issue.

-- John