ardour 2.5 and aubio

[Anthony Green]

Ardour 2.5 just came out, but it introduces a new library dependency: aubio.

I slapped together a quick package for aubio.  We can't roll out Ardour 
2.5 'til aubio is approved.

https://bugzilla.redhat.com/show_bug.cgi?id=454960

Any takers?

AG