Add make-xchat helper

This helper uses this patch to replace the reference to a nonfree browser (Opera) with a reference to the default system browser (x-www-browser). It should work on toutatis too.

Build triggered.

Build finished. Result OK Build results available at: http://jenkins.trisquel.info:8085/job/request-merge-source-builder/162/

mentioned in commit 9f71c69a

Status changed to merged