Release v1.1.0-alpha.1

Notice:

• This is a pre-release.
• The arm64 binary only supports installation of arm64 kubernetes cluster.

This release includes the following changes:

• Upgrade etcd to v3.4.13
• Upgrade calico to v3.16.3
• Support multi container runtime: containerd/cri-o/isula

The following parameter can be added to the configuration file to interface with the specified container-runtime：

kubernetes:
  containerManager: containerd    # containerd or crio or isula

Release v1.0.1

Merge pull request #366 from pixiake/release-1.0

update download script

Release v1.0.0

merge master into release-1.0

Signed-off-by: pixiake <guofeng@yunify.com>