Request for swapcontext and getcontext to be ported to our libc

[Matt Emmerton]

> Hey,
> Any progress on the fully libc *context functions?

I've toyed with it a bit, but there are some issues I'm not sure how to
solve (such as accessing curthread -- a kernel construct -- from userland).
I would welcome discussion with the person who suggested it (corecode?).

Also, I felt it pertinent to focus on the quick-start FreeBSD port to get it
into the 1.8-release.

--
Matt Emmerton