`find . -type f | xargs sed -i 's$http://clif.ow2.org$https://clif.ow2.io$g'`

The aim is not to remove the origin of the project. However, the tool can be used
without CLIF as a basic web proxy and maybe in the future with an other tool
(like Apache JMeter or Tsung), so removing "CLIF" (when it is not specific to
this program) is better to avoid confusion. Of course, the source code to support
CLIF will remain.