new: ibex.util.vector

I just finished coding the first pass on vector.

It's similar to a Java vector, a dual-way linked list (or so Tupshin
said!) of arbitrary order.

It's mostly completed although missing:
* access to first/final elements
* it's not yet tested, just thoroughly proof read

I've updated selectable to use it; selectable is beginning to look
increasingly elegant.

I also think that focusable could well use it, so I'll look at updating
that as well.

I haven't forgotten border or button/radio/check; it's just important to
get the libs right y'know. ;)

darcs get/pull http://www.charlietech.com/darcs/ibex_widgets
-- 
- Charlie

Charles Goodwin <[email protected]>
Online @ http://www.charlietech.com