std.rational -- update and progress towards review

[Joseph Rushton Wakeling]

On 03/10/13 13:00, Dicebot wrote:
> Yes. Common approach is to fork phobos in private repository and integrate
> proposed code there so that it will be available for easy review. Doing actual
> pull request will only distract Phobos devs and it not really needed.

As the one who'd be managing the review process, do you have any preferences for 
how I handle the issues I raised above?  Do you think it'd be better to parcel 
the potentially broadly useful code out across different Phobos modules as 
suggested or let the review process decide what goes where?