Style updated on d-programming-language.org

[Walter Bright]

Andrei Alexandrescu wrote:
> David Gileadi sent an update taking the recent feedback into account.
> 
> http://d-programming-language.org

Thanks, David!

Looks nice! But it doesn't reflow well when shrinking the window. The header 
gets goofed up, and the google ad on the bottom is a fixed size.

Site looks good on an iPod. (Can someone with an Android check it?)

Probably can ditch the reddit button.