chmod the whole nightly build tree so that other users may read core files from failures
chmod the whole nightly build tree so that other users may read core files from failures

git-svn-id: 14be032f8f42541b1a281b51ae8ea69814daf20e@3409 4b44e086-7f34-40ce-a3bd-00e031736276

BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc