[Bug] Waterfalls disgregard volume settings

[madetofall]

I have all of my volume sliders set to '0' (I typically have voice chat on or I am listening to podcasts while playing) - despite my in game volume settings, waterfall sound effects appear unaffected.
The waterfall in the dungeon and the one by the main town both act in the same manner.

[lugdunon]

Ouch, I'll make sure this is squashed in the 0.8.0 release.

Thanks!