localization: fix "xbmc/settings/foo.xml" to "system/settings/foo.xml"
cosmetics: follow coding guidelines in CTCPServer
restructure CreateTCPServerSocket to check socket validity before using it
[win32] fix setsockopt calls in CreateTCPServerSocket to support dual-stack IPv4 and IPv6
fix log message introduced by da347c4dacb9ef91883af47a19af6153ade5f137