SDK Update

An update has just been released for the SDK; along with speeding up the time it takes to load through Steam it should also fix cubemaps, so if your PC has been crashing when running "buildcubemaps" try it again after updating.

Note you may need to click the "reset game configurations" button on the SDK menu if you get "GameInfo.txt not found" error messages. We'll also update our tutorials on Hammer setup, etc.