Backed out changeset 7a58581d842c This changeset breaks a number of CW tests, which depends on pre add hooks. I'm backing it out, so that we can start the need-for-speed sprint with green tests (and possibly rework this changeset)

from os.path import join
from cubicweb.toolsutils import create_dir

option_renamed('pyro-application-id', 'pyro-instance-id')

create_dir(join(config.appdatahome, 'backup'))