stdout for default waf output

[Björn JACKE]

Hi Tridge,

as the waf build currently outputs all the default "Checking for ..." messages
to stderr the error output in the buildfarm is "spammed" a bit :-). Can we get
that changed to be directed to stdout instead of stderr?

Cheers
Björn
-- 
SerNet GmbH, Bahnhofsallee 1b, 37081 Göttingen
phone: +49-551-370000-0, fax: +49-551-370000-9
AG Göttingen, HRB 2816, GF: Dr. Johannes Loxen