v0.3.1

This adds a proxy: "hostname:port" label to the Prometheus metrics, which allows Twemproxy instances running on the same host (or on machines with the same hostname) to be differentiated. See #6 for details. Thanks to Usiel Riedl for the feature!

Bugfix Release

Two components in this one:

• Fixes a counter reset bug that can happen when one counter is used with multiple different sets of labels.
• Updates some development dependencies to please GitHub's Dependabot.

Initial Release!

v0.1.1

Gemspec fixes.