Created SimpleXMLSerializer which makes loading and saving variables to an XML file simple. In the process I removed the the XML code from the Settings class. It now uses SimpleXMLSerializer to load and save settings. I have also updated the RPG demo to use the SimpleXMLSerializer for loading and saving game specific data.

{
	'opengl': ['core/video/opengl/', 'core/gui/base/opengl/'],
	'zip': ['core/vfs/zip/'],
	'script-python': ['swigwrappers/python'],
	'script-lua': ['swigwrappers/lua'],
}