[web-request] handle default language earlier
We now read language negotiation header at initialisation time (previously done
during ``set_session``). This simplify the set_session code for later reworking.
There is no change in behavior, the user selected language continue to overwrite
the one picked from the header/default when applicable.
related to #2503918
/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 2>&1; \
else \
/etc/init.d/cubicweb reload > /dev/null 2>&1; \
fi; \
endscript
}