waf removal, almost done

Some months ago I wrote about my intention to drop waf from Debian.

Some bugs I filed were fixed shortly after they appeared, while I managed to upload three NMUs to fix remaining bits (flowcanvas, patchage and raul), all uploaded to DELAYED/15 to give maintainer time to react.

In the meantime, jack-audio-connection-kit was uploaded build-depending on waf, this brings in a little unplanned delay, but I provided a workaround to get rid of it, it just need to be improved.

I want to remove waf before Squeeze is released, so please do not upload more packages build-depending on waf, this way you can help its removal. Thank you!