Moving mpg123 plugin from -ugly
authorTim-Philipp Müller <tim@centricular.com>
Sun, 20 Aug 2017 12:48:48 +0000 (13:48 +0100)
committerTim-Philipp Müller <tim@centricular.com>
Sun, 20 Aug 2017 12:48:48 +0000 (13:48 +0100)

Trivial merge