Improved readme and postinstall script.
Fixed PulseAudio refresh button that was broken by conditional compilation.
Added 'minrate', 'maxrate' and 'bufsize' options, and fixed a race condition in SyncDiagram.
Improved sync diagram.
Fixed starvation problem that could occur when previewing at a high frame rate.

The previewer uses a lot of CPU time to scale the image, and as a result the lock in X11Input would be held almost all the time. This blocks the GUI thread when it tries to read the frame counter.

With this patch, the previewer doesn't hold the lock anymore while scaling, and X11Input doesn't hold the lock while pushing out a frame. The frame counter is now a separate atomic variable.
Improved readme and postinstall script.
Added detection for ffmpeg include/lib directories to simple-build-and-install.
Improved README.
Moved packages to a separate repository.

https://github.com/MaartenBaert/ssr-packages
Merge branch 'master' into jack

Conflicts:
	README.md