- Removed default logging. Now a function is available for the new
$period_finished filter field to get the same behavior for logging
named Metrics::write_log.
- Added index rollups for getting multiple metrics result values
as the same time.
- Metrics now work on cluster deployments with no caveats. It should be
completely transparent. Intermediate updates to speed some detection
will come later.
- Metrics API is much more similar to the Logging framework's API now.
- Filters define all output and metrics collection now.
- Initial attempt at thresholding and generating notices.