PTB BETA RELEASE "Rainbows, Droids & Compute Hippies!" SP12


    Make drawtext plugin on Linux and OSX more robust against weird fonts (non 8bpp fonts).
    Improve window focus handling for GUI windows on Linux. Don't steal window focus.
    Enable camerabin2 video capture and recording with GStreamer SDK.
    Enabe movie writing with GStreamer SDK 2013.6.
    Enable delay loading of GStreamer SDK dll's on 64-Bit Matlab on Windows to make installation optional.
    Fix regression in BubbleDemo.
    Allow sending arbitrary data types in NetStation().
    Performance improvements for DaqAInScan et al.
    Fix GLU toolkit NURBS functions regression, so they can be actually used.
    Movie demo cleanups for pure GStreamer operation and no more Quicktime.
    Improvements to radiometric functions by David Brainard.