snoopy

This release adjusts the Elasticsearch sink to better handle timeouts and clear its internal buffer. Also, we now keep a long-lived sum/count for Prometheus sink Summaries, even despite the windowing.

• 859ca8a :: Avoid catastrophic failure when an ES request times out (#356)
• 071328c :: Perform a linear search in ES buffer (#357)
• 86f753c :: Introduce Telemetry override for 'count' and 'sample_sum' (#354)