Carlos Garnacho authored Dec 13, 2018 and Florian Müllner committed Jan 09, 2019

All callers have been updated to use MetaSoundPlayer. This drops direct
usage of libcanberra-gtk, and the X11 connection indirectly. One thing
worth noting is that we pass less metadata (eg. event x/y that might be
used for surrounding effects). This was all largely unused, so the
MetaSoundPlayer was made simpler.

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