Span_arpeggio patch

[Carl Sorensen]

Way back in January  (10 months ago!!!), Chris Snyder was working on a patch
for spanned arpeggios.

<http://thread.gmane.org/gmane.comp.gnu.lilypond.devel/19682>

I was asked to shepherd this process, but I have apparently dropped the ball
on doing so.

As far as I can see, no patch was ever applied, although there is a patch in
the -devel threads.

<http://thread.gmane.org/gmane.comp.gnu.lilypond.devel/19027/>


A regression test is available here:

<http://temp.mvpsoft.com/ly/arpeggios/>

As far as I can tell, this patch was never applied, nor had a final
resolution, probably in part due to my losing track of it.

What can I do to help close this issue?

Thanks,

Carl