Manuel: just looking for a sanity check here, as I have no idea what I'm doing with this thing, I just want to build it :)
This allows the plug-in to be built with VS2013. It still installs on 2010, 2012 and 2013.
The sn.exe path change might be unrelated. I probably installed a new sdk of some kind but kept building with the old Key.snk file lying around.