v1.3.0

Quickfix (#151)

* Revert "Final contribution by me (#111)"

revert changes
This reverts commit af59806cee89a5eb4fff92c3f754a78cb08838b3.

* fix packages

* testing

* delete files

* volume command

* add appveyor

* test

* appveyor

* play music

* javadocs

* fix code quality