Steam Update

[Blink]

A Steam update has just been released, here are the SDK related changes:

* Added Snow and rain materials
* Added qc_eyes.exe
* Made various improvements and fixes to .FGD files
* Fixed an issue in Vrad which was causing visible artifacts when lighting very large objects/areas
* Fixed an issue in Studiomdl which was allowing bad $modelnames to be used
* Fixed the "cordon" texture used by Hammer

Check out the rest of the update on the Steam news page.