IPv6 firewall rules can be incomplete when using PPP

start_firewall is called by both rc and ipv6-up. If these two calls overlap, it could cause the filter_rules_ipv6 to be incomplete, which causes loss of IPv6 connectivity (although ping works)
webui: Fixed unescaped quote that broke the PControl page on French and Italian locales
Merge pull request #705 from pinwing/ipv6

Sometimes IPv6 firewall rules are incomplete when using PPPoE (timing issue)
dropbear: Don't send SSH_MSG_UNIMPLEMENTED for keepalive responses (upstream  10eb218fb022f435d75fa6e8e6fc6234e66f31b9)
Bumped revision to 376.45 release