v0.9.0 release

* Add support for graphite tagged metrics
* Fix dashboard to 0 last_exception time on startup
* Multiple doc updates
* Correct some old integration examples
* Update container image to use recent node version
* Drop node version 8 and 11 from CI as they are no longer LTS

v0.8.6

* add max TTL flag for gauges to allow less frequent gauge updates
* add filter to prevent flushing unwanted calculated metrics
* fix double flush that would often occur when running inside a container

Release 0.8.5

Package updates for node 12 compatibility

dependency updates and a package lock file

0.8.2 - minor changes to deployments

fix proxy ring health check failure action

fixes package.json

Retroactively tagging version v0.7.2

bump to v0.7.1