[FriBidi] Unicode 10 support and maintenance takeover

[Khaled Hosny]

On Mon, Nov 06, 2017 at 05:26:54PM -0500, Behdad Esfahbod wrote:
> The only other thing I like to figure out is Khaled's request to make
> reorder_runs public somehow, without exposing FriBidiRun (completely).  I'm
> fairly sure it's possible to expose just the first two members of
> FriBidiRun. Ie:
> 
> struct _FriBidiRunPublic
> {
>   FriBidiRun *prev;
>   FriBidiRun *next;
> };

Raqm does not need that any more, it always uses its copy of the
function. But it is still a nice convenience API to have.

Regards,
Khaled