[security] use a stronger encryption algorythm for password, keeping bw compat
Administrator should ask their users to reenter new password so they
benefit from the new encryption.
Also, new encryption is cross-platform compatible, eg you may now move an instance
from windows to linux painlessly
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