* commit '576d7840':
  update versions

* commit '971ba7cb':
  Add special case for pip version, which shouldn't have leading zeroes

* commit 'b7bbd656':
  Update docusaurus version to 2.0.0-beta.6

* commit 'db24b20b':
  Missing files for version freeze and docker image name updates
  Freeze docs version for 21.09.0

* commit '0520a4aa':
  Add missing Makefiles
  Remove the errorneous gitignore file
  Copy the whole site source folder to the build dirctory
  Cookbook update
  update python simple examples
  Update changelog, add missing source file
  Docusaurus site update.

* commit '7a366e48':
  update changelog
  configure more alerts
  update prom metric for receiver
  add metrics endpoint to broker, update alerts
  fix test
  fix deployment
  metrics for receiver
  ignore mongoose warnings
  fix discovery, add metrics to receiver
  add prometheus and alertmanager

* commit '1041e8c4':
  Cookbook update
  update python simple examples
  Update changelog, add missing source file
  Docusaurus site update.

* commit '99386e1d':
  fix start script for win
  update changelog
  allow _  in stream name

* commit '1af2c37f':
  use service unavailable error
  auth - token caching,profiling, update deplay files
  error if canot get db address
  added tests
  added token revocation
  token to db
  token to db
  increase timeout
  fix
  added database to authorizer
  fix possible race condition and log format
  fix test
  bl token for raw mode