Import translations from GNOME

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
www: Update changelog

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Update man page with information on SIGUSR1/SIGUSR2 usage

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
main: Make SIGHUP force a reconnection

This can be used to ask openconnect to reconnect after changing IPs,
instead of waiting for a DPD timeout to occur.  It also helps in
situations where the gateway has disabled DPD.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>