v0.4.0

Added

• Support configuring the scaler reconcile interval (#61).
• Add simple web-based dashboard that shows the current state and query counts of all clusters.
  This makes it easier to debug state transitions of clusters (#62).
• Add Unhealthy cluster state.
  This state is entered once the readiness check of a cluster in the Ready state fails.
  The cluster will remain in the Unhealthy state until the scaler marks that cluster as Ready again.
  Unhealthy clusters won't get any new queries; if all clusters are unhealthy, new queries will be queued.
  The cluster health check interval can be configured using the scaler reconcile interval (#63).

Changed

• Set defaults to oci (#57).

Fixed

• Reduce max poll delay from 10s to 3s to have better client responsiveness