metrics 0.13.0-alpha.2

A lightweight metrics facade.
Documentation
# Changelog
All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

## [0.12.1] - 2019-11-21
### Changed
- Cost for macros dropped to almost zero when no recorder is installed. (#55)

## [0.12.0] - 2019-10-18
### Changed
- Improved documentation. (#44, #45, #46)
- Renamed `Recorder::record_counter` to `increment_counter` and `Recorder::record_gauge` to `update_gauge`. (#47)

## [0.11.1] - 2019-08-09
### Changed
- Fixed a bug with macros calling inner macros without a fully qualified name.

## [0.11.0] - 2019-07-29
### Added
- Life begins at 0.11.0 for this crate, after being renamed from `metrics-facade` to `metrics` to
  reflect the duality of `metrics` to the `log` crate. (#27)