[connection] reinstall cnx.data as cnx.transaction_data
Too much code expects self._cw.data to be session data.
backout 9b2f68916474
Related to #2503918
Related to #2912807
usr/lib/python2.4/site-packages/cubicweb/
etc/init.d
etc/cubicweb.d
etc/bash_completion.d
usr/bin
usr/share/doc/cubicweb-ctl
var/log/cubicweb
var/lib/cubicweb/backup
var/lib/cubicweb/instances