std.benchmark is in reviewable state

[Walter Bright]

On 9/25/2011 6:08 PM, Andrei Alexandrescu wrote:
> I've had a good time with std.benchmark today and made it ready for submission
> to Phobos. As a perk I've added the %h format specifier, which formats a number
> in human-readable form using SI prefixes.


We already have std.perf:

  http://www.d-programming-language.org/phobos/std_perf.html

A review should compare the two.