add yandex-music-mac-player to whitelist

It's a player for Yandex.Music service:

https://github.com/mblsha/yandex-music-mac-player
http://music.yandex.ru
Merge pull request #17 from shamrin/patch-1

add yandex-music-mac-player to whitelist
Add jriver.MediaCenter to whitelist
Add Rackit