Longhorn manager: 5871843d78168db37d156460a01c56d8620b6f8e
Changes:
1. Complete rewrite of orchestration of Longhorn manager
2. Updated the deployment model of Longhorn driver
This breaks the compatiability with previous version. Please clean up and
re-deploy.
Major updates:
1. Longhorn will now run in the `longhorn-system` namespace by default.
2. Improvement on Longhorn Driver includes dependency check when started and
automatic static-linked jq installation
3. Use ganesha as the NFS server for testing to remove the dependency of
`nfs-kernel-server` on the host.
