move PRE_SKIN_VERSION_*_COMPATIBILITY defines from Settings.h to system.h
move DEFAULT_SKIN definition from GUISettings.h to system.h
cosmetics: add empty line at end of ISubSettings.h
utils: add CBooleanLogic implementation
utils: add IXmlDeserializable
settings: implement new settings system
add system/settings with setting descriptions in XML
CUtil: add ValidatePort() method
settings: integrate new settings system into CSettings
settings: replace CSettings and CGUISettings with new CSettings
added actions settingsreset and settingslevelchange
add SettingLevel to CViewStateSettings
CGUISpinControl: support (string, string) entries
settings: integrate new settings system into GUI
[win32] update VS project files
[osx/ios/atv2] - sync xcode projects
[confluence] add sidebar to settings view
Merge pull request #2660 from Montellese/settings_refactor

Settings refactor