[Hotfix] Clean up xfvb processes after test #43
Merged
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Pybullet realtime physics don't work unless it is running in GUI mode. This isn't a big deal when we are running the simulation for ourselves; however, to write deterministic tests, we need to create a virtual display.
We're using
pyvirtualdisplay
for this, but the display process never ever terminated so they were just hanging. This should take care of all of that.