settings: move GUIDialog* and GUIWindow* into their own sub-directories
move AppParamParser.h/cpp from xbmc/settings/ to xbmc/
XMLUtils: add std::string version of GetString()
settings: move UPnP related settings from CSettings to CUPnPSettings
turn CPlayerCoreFactory into a singleton
settings: move logic to load playercorefactory.xml into CPlayerCoreFactory
[win32] update project files
Merge pull request #2258 from Montellese/settings_cleanup

some settings related cleanup