[forms] propagate aguments given to .vocabulary to .choices if it's a callable.
So we can properly uses vocabulary(limit=xxx) in places where we used to call
.choices(limit), since field.choices is not meant to be accessed directly.
Also, document expected behaviour for custom choices method for relation fields.
/var/log/cubicweb/*.log {
weekly
missingok
rotate 10
compress
delaycompress
notifempty
create 640 root adm
sharedscripts
postrotate
if [ -x /usr/sbin/invoke-rc.d ]; then \
invoke-rc.d cubicweb reload > /dev/null; \
else \
/etc/init.d/cubicweb reload > /dev/null; \
fi; \
endscript
}