[cairo] Road to 1.10

[Behdad Esfahbod]

Chris Wilson wrote:
>   CAIRO_STATUS_INVALID_SIZE

We should also add CAIRO_STATUS_USER_FONT_METHOD_NOT_IMPLEMENTED.
Kick me to add, or just go ahead and add it.

>   The built-in twin font is now called "@cairo:" and supports a limited
> set of options like "@cairo:mono". Where are these specified?


I also need to update that list to match current pango.  It's not documented
anywhere yet.  I'll add something.

behdad