Congestion_control is it dead?

[Susan Hinrichs]

I'm testing congestion_control to enforce per-origin connection limits.  
In my micro tests, all is looking good.  However, as I'm reviewing jira 
for open issues, I came across the following comment from Leif in TS-1221

"I'm not sure, but I think congestion control code is missing vital 
parts that was never open sourced (such as the ARM kernel module). But 
again, I'm not 100% sure. Does anyone know? If it's crippled, we should 
make sure to clean up the configs and traffic_line etc."

Does anyone have definitive information the state of 
congestion_control?  Is anyone using it these days?

Thanks,
Susan