PTB BETA RELEASE "The fun in dysfunction"

Release highlights:

    Support for GStreamer camerabin2 video capture & recording.
    Support for builtin imaging pipeline panel fitter.
    Improved Linux support for timestamping, graphics problem detection and desktop compositor handling.
    Improved support for handling of MS-Windows-8 dektop compositor handling.
    Bugfixes / Workarounds for various Windows and OSX operating system bugs.
    Fixes to PsychKinectCore and PsychHID.
    Various other fixes for small documentation and PTB bugs.
    Potential multi-threaded decoding improvements for GStreamer movie playback.
    More fixes and workarounds for handling of slightly broken Intel-DDX graphics drivers on Linux (pre 2.20.16 series).
    HDMI side-by-side horizontally compressed frame packing format support for stereo displays.
    Datapixx and Eyelink improvements.
    CRS OptiCal support.
    Other stuff i can't remember.