Changes since tag 5.4

commit 23a62cf89c2c4ac99870e66ba2a2b4487d4fbe8b
Author: zanony <zanony@jsommer.at>
Date:   Mon Jul 23 01:53:01 2018 +0200

    Fix missing CustomMusic.lua
    Fix error when enabling events.
    Zone events will now play when entering that zone via a loading screen.

