- setting system: replaced settings.txt + sysopt.bin with json-based system (defaultSetting.json + settings.json)

- some work on system settings window
- new menu for selecting resolution (reused town portal graphics), can be opened from system settings

client/CVideoHandler.cpp

@@ -7,7 +7,8 @@
 #include "UIFramework/SDL_Extensions.h"
 #include "CPlayerInterface.h"
 
-extern SystemOptions GDefaultOptions; 
+extern CGuiHandler GH; //global gui handler
+
 //reads events and returns true on key down
 static bool keyDown()
 {