1.1.0 / 2013-10-20 ================== * add `.addEventListener()` and `.removeEventListener()` aliases 1.0.1 / 2013-06-27 ================== * add support for legacy ie 1.0.0 / 2013-02-26 ================== * add `.off()` support for removing all listeners 0.0.6 / 2012-10-08 ================== * add `this._callbacks` initialization to prevent funky gotcha 0.0.5 / 2012-09-07 ================== * fix `Emitter.call(this)` usage 0.0.3 / 2012-07-11 ================== * add `.listeners()` * rename `.has()` to `.hasListeners()` 0.0.2 / 2012-06-28 ================== * fix `.off()` with `.once()`-registered callbacks