v5.0.5

Changelog

41cb6a1 Flag to disable creating namespace (#479)
a365f5d Check if release is in current list and fail if not (#483)
0155f2f add json schema to v2 course files and add lint command (#484)
5ca4a11 Managed by Terraform
62278d2 Managed by Terraform
a14fd58 [go] do not drop minimum_versions when converting (#491)
092157c Fix label typo in kube.py (#495)
2f96f8a add docs for deploying from a local filesystem (#496)