Improvements:
[proxy] fixed rewrite location to avoid open redirect vulnerability
[farms] L4xnat: fixed mark masquerade
[farms] L4xnat: add recovery system in NFTLB daemon
[farms] L4xnat: translate the new L4xnat backend status “available” as “up”
Bugfixes:
[webgui] fixed tab title
[webgui] fixed checkupdate message