* Demo song: "Locrans Shop" made by Trumpetrespas.
* Editor: Add "Drums" to the "(click me)" menu.
* Fluidsynth: Replaced the default soundfont
  Orgue.sf2 with FluidR3_GM_drums.sf2. FluidR3_GM is
  made by Frank Wen. Trumpetrespas stripped it down
  to only include drums.
* Audio: Fix LV2 plugins (bug introduced in 7.2.87).
* Build: Fix having to run "make packages" twice/etc.