Grégory Saive

Results 2 issues of Grégory Saive

This PR covers the addition of the onBeforeNext and onAfterNext and also integrate the PR#1 by Stemlet (https://github.com/Stemlet/jTinder/commit/f3565b6f2376ebaf013306829b2b3fcfa5f4c938) which adds the onFinish handler.

![photo_2017-06-27_22-57-27](https://user-images.githubusercontent.com/141805/27609705-01495698-5b8c-11e7-8589-d119ebb6d42a.jpg)