The get_token_endpoint API should return a map of tokens to endpoints,
including the bootstrapping ones.
Use get_local_storage_service().get_token_to_endpoint_map() for it.
$ nodetool -p 7100 status
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID Rack
UN 127.0.0.1 12645 256 ? eac5b6cf-5fda-4447-8104-a7bf3b773aba rack1
UN 127.0.0.2 12635 256 ? 2ad1b7df-c8ad-4cbc-b1f1-059121d2f0c7 rack1
UN 127.0.0.3 12624 256 ? 61f82ea7-637d-4083-acc9-567e0c01b490 rack1
UJ 127.0.0.4 ? 256 ? ced2725e-a5a4-4ac3-86de-e1c66cecfb8d rack1
Fixes#617