[settings] - adapt the ios settings.xml and hide some more options which are invalid
[settings] - fix the timezone visibility code for working on darwin
[settings] - add debug log for each loaded settings.xml file for allowing to follow overrides ...
[settings] - fix the load of darwin specific settings.xml - TARGET_LINUX is not defined on TARGET_DARWIN
[settings] - fix the IsAppleTV2 condition by using the proper define TARGET_DARWIN_IOS_ATV2
[settings] - airplaypassword depends on useairplaypassword
[settings] - fix the input settings for osx