This edge release adds refinements to the Linkerd multicluster implementation,
adds new health checks for the tracing add-on, and addresses an issue in which
outbound requests from the proxy result in looping behavior.
* CLI
* Added the `multicluster` command along with subcommands to configure and
deploy Linkerd workloads which enable services to be mirrored across
clusters
* Added health-checks for tracing add-on
* Proxy
* Added logic to prevent loops in outbound requests