Remove dependency to the venerable text editor ed

git-svn-id: https://scm.cri.ensmp.fr/svn/newgen/trunk@1318 80f2d23d-f6f1-0310-8ea7-b0e6515bd809
Merge branch 'master' of /home/keryell/projets/Wild_Systems/Par4All/CRI-git-svn/newgen into CRI-newgen