- Rewritten Xvfb launch using Process.spawn and avoiding a shell
- Do not manually remove X11 lock file when stopping Xvfb; this isn’t conventional. Should eliminate some errors with not being able to find Xvfb
- More informative error messages
- Detect situation when Xvfb can’t listen to any sockets and raise corresponding error.
- If video recorder provider is libav, use avconv binary instead of...