1.3.0 / 2019-10-25
==================
* Add interval to options

1.2.0 / 2016-02-12
==================
* Return a reference to the timer
* Add options to the constructor to be able to parameterize the threshold
* Tests and coverage
* Removed make file and replaced with NPM scripts

1.1.0 / 2015-01-12
==================

* unref interval

1.0.0 / 2014-06-10
==================

* round ms