------------------------
**Features**
* Added support for Python 2.7.
* Added a ``markus.backends.statsd.StatsdMetrics`` backend that uses
pystatsd client for statsd pings. Thank you, Javier!
**Bug fixes**
* Added ``LoggingRollupMetrics`` to docs.
* Mozilla has been running Markus in production for 6 months so we
can mark it production-ready now.