Milliner v1.4.2

This minor Milliner release adds a few new features:

  • Maintenance of a number of unassigned, ready to use databases for HATs to speed up HAT provisioning
  • A tool to trigger an update operation across all HATs when the database schema changes, mitigating the possibility of there being intermittent failures when a HAT starts being used after a schema change
  • Replaces highcharts data visualisation library with the open source chart.js