cleanup libc++ C++1y status page

[Ahmed Charles]

________________________________
> From: david.majnemer at gmail.com 
> Date: Tue, 4 Mar 2014 08:09:09 +0000 
> Subject: cleanup libc++ C++1y status page 
> To: cfe-commits at cs.uiuc.edu; mclow.lists at gmail.com 
>  
> This patch modifies libc++'s cxx1y_status.html page to point to  
> documents on the C++ Standards Committee site. 

You link to iso-cpp.org, does that paper not exist on the other site?