[development] Menu system work

[Earl Miles]

Robert Douglass wrote:
> I wonder right off why HEAD's times are so much more level and 
> predictable (smaller standard deviation) than 5's? Especially since my 
> gut feeling is that 5 is much more predictable and regular than 4.7.

In unstructured testing, I noticed that pulling large amounts of data from 
cache tends to have wildly variable times; this could potentially explain some 
of the speed differences.