Added color key functionality to the Image source
Major enhancement of audio properties for the DirectShow plugin.
I've spent quite a few hours testing this with different setups, but there's only so much I can do on my own, especially since my USB capture card has died completely.
Crossbar access has also been added in a way similar to the video and audio device lists, because I could not for the life of me figure out how to reliably automatically pair up crossbars with devices.
Some minor fixes to the configuration dialog
Because leaving in debug message boxes is cool.
Minor UpdateSettings fix.
Merge pull request #134 from paibox/master

Added color key functionality to the Image source