Proposal: Tidy up and export PSQ from base

[Johan Tibell]

On Sun, May 1, 2011 at 11:52 AM, Edward Z. Yang <ezyang at mit.edu> wrote:
> Excerpts from Johan Tibell's message of Sun May 01 04:26:52 -0400 2011:
>> I just wanted to note that the PSQ was made monomorphic for
>> performance reasons (about a 30% improvement) and I be hesitant to use
>> a more generic version in the event manager unless it performs close
>> to the current implementation.
>
> Just to clarify, here you mean monomorphic in the key and priority values?

Yes. And the values as well (i.e. monomorphic in the keys, priorities,
and values).