docs: def reset(project, user):
          """Reset system, delete all output files and prepare for a new run"""
          d = Project.path(project, user) + "output"
          if os.path.isdir(d):
              shutil.rmtree(d)
              os.makedirs(d)
          else:
              raise flask.abort(404)
          if os.path.exists(Project.path(project, user) + ".done"):
              os.unlink(Project.path(project, user) + ".done")
          if os.path.exists(Project.path(project, user) + ".status"):
              os.unlink(Project.path(project, user) + ".status")