I tried Ubuntu13.10 alpha, and noticed that it came with Rubberband1.8,
so I tried it, and the crispness options have changed, and 5 is the new
default, not 4, which would be sub-optimal for the edgers...

Since 1.8 sounds better anyways, pull it's code into PyDAW and remove it
as a dependency...  This way the sound is consistent across all distros.