misc: change references to point to the new website

It's been a while now that crosstool-NG has been hosted on it's own
website, and not at my home. Change every reference to the old site
to the new one, everywhere is makes sense to.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

 reporter_name="Ioannis E. VENETIS"

 reporter_url="http://sourceware.org/ml/crossgcc/2009-11/msg00109.html"

 reporter_comment=""