Quake 4 v1.2 Patch

This update replaces the 1.1 patch released several weeks ago, and includes all of the changes outlined for that update, including: a fixed pure server system, a new AddonPak autodownloading system, voice chat in multiplayer, a forcemodel option, brightskins, smooth stairjumping, a one-minute warning for tournament matches, Hyper-Threading Technology and Dual Core support as well as a number of multiplayer specific fixes