Bump jmespath dep to 0.2.1
Update models to the latest version
Add support for new cn-north-1 region
Merge branch 'cn-north-1' into release-0.29.0
Add docs for cloudfront model
Bumping version to 0.29.0
Merge branch 'release-0.29.0' into develop

* release-0.29.0:
  Bumping version to 0.29.0
  Add docs for cloudfront model
  Add support for new cn-north-1 region
  Update models to the latest version
  Bump jmespath dep to 0.2.1