Allow multiple `Close()` calls on TopicProcessor

Merge pull request #12 from movio/allow-multiple-close-calls

Allow multiple `Close()` calls on TopicProcessor

Add a `Flush()` method to the Sender() interface

Merge pull request #8 from movio/add-sender-flush

Add `Flush()` to Sender

Export NoopMetricsProvider

NoopMetricsProvider is a dummy implementation of MetricsProvider that does nothing.
Useful for testing, not recommended in production.

Remove slash from TopicProcessor metric labels

Slashes in metric labels cause issues in Prometheus, this change removes them.

MultiElasticsearch: allow for more flexibilty in associating tenant to index/type

Merge pull request #6 from movio/multi-es-improvement

MultiElasticsearch: allow for more flexibilty in associating tenant to index/type

Add byte-level summaries to MultiElasticsearch

0.3.0

Add byte-level summaries to MultiElasticsearch

Replace MultiElasticsearch counters with summaries

0.2.0

Replace MultiElasticsearch counters with summaries

Initial version

Initial release.

For an introduction to Kasper and the motivation behind it, you can read our introductory blog post: https://movio.co/en/blog/Kasper-process-library/