[FIX] Check if behind a Frontend-Proxie/Load-Balancer which rewrites ports (some cloud offerings need this) (thanks Soulou)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52330 b456876b-0849-0410-b77d-98878d47e9d5
[FIX][SEC] That pref might contain a password

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52331 b456876b-0849-0410-b77d-98878d47e9d5