cl_ejectbrass 0 can cause crashes playing heavy

[joebonrichie]

I've had this issue for a longtime
http://teamfortress.tv/thread/22134/hl2-exe-crashing-when-playing-heavy

setting cl_ejectbrass 1 fixes this.

Option 1 - move cvar to experimental section in cfg and a comment to enable if experiencing crashes playing heavy
Option 2 - do a timedemo and see whether enabling it by default causes any real fps loss, if not enable the cvar by default

[RhapsodySL]

Fixed by c3e2e18