Update de L4d2 et le SDK y a aussi droit:
When browsing for a func_instance filename, the proper path relative to the current bsp will be returned. This allows level designers to use instances from the base game in dlc maps without having to manually fix up the filename
Changed base.fgd default skybox to one that exists in L4D2
Added env_instructor_hint to fgd, as well as content/game icon images
Deadline URL fix
Added missing vmt for env_instructor_hint
L4D Addon Support - restored missing delivery van modified VMT
L4D Addon Support - restored missing shelves metal
L4D Addon Support - restored floodlight generator switch
L4D Addon Support - restored missing airliner content
Updated vbsp to correctly handle instances within instances
Fixed the fullscreen engine changing the Hammer views, requiring a restart of Hammer