Merge pull request avelino#567 from azer/master

Add logger

README.md

@@ -409,6 +409,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [go-logger](https://github.com/apsdehal/go-logger) - Simple logger of Go Programs, with level handlers.
 * [log-voyage](https://github.com/firstrow/logvoyage) - Full-featured logging saas written in golang.
 * [logex](https://github.com/go-logex/logex) - An golang log lib, supports tracking and level, wrap by standard log lib
+* [logger](http://github.com/azer/logger) - Minimalistic logging library for Go.
 * [logrus](https://github.com/Sirupsen/logrus) - a structured logger for Go.
 * [logrusly](https://github.com/sebest/logrusly) - [logrus](https://github.com/sirupsen/logrus) plug-in to send errors to a [Loggly](https://www.loggly.com/).
 * [logutils](https://github.com/hashicorp/logutils) - Utilities for slightly better logging in Go (Golang) extending the standard logger.