[Cake] Technical page updated

[Jonathan Morton]

I just updated http://www.bufferbloat.net/projects/codel/wiki/CakeTechnical to reflect three significant features that were added since I originally wrote it:  triple isolation, the RTT parameter, and the automatic ingress rate estimation/tracking.

I now consider Cake to be major-feature complete.  There are still a lot of minor things to poke at, but I don’t see anything big being added in the near future.

 - Jonathan Morton