deprecate get/set_shared_data API Session or transaction data must be used instead. We must forward .transaction_data to web/request from which it was missing (this is indeed a _cw object API). Closes #3799036.

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