re-added <headers> rule for compatibility: it now outputs a warning and will be removed in the future
re-added <headers> rule for compatibility: it now outputs a warning and will be removed in the future

git-svn-id: bd2c15cabedda08daa94fbf2043b3f8588072843@911 34294538-1d18-489e-82e9-bb8ff975a0eb

Distrotech/bakefile,Distrotech/bakefile,Distrotech/bakefile,Distrotech/bakefile