nats-0.16.0

Features

• Create Service Account by default, optionally allowing named service account to be passed in values file (#481)

Fixes

• Add Authorization string to Cluster Routes (#487)

Improvements

• Update natsio/nats image version to 2.8.0 (#489)
• Update natsio/nats-box image version to 0.1.0 (#489)
• Add websocket.handshakeTimeout option (#480)