mxFrame v 0.5.0

1. Rewrite almost whole core code:
	1.1 all codes are not including evil 'eval' now...
	1.2 item interfaces are more complete
	1.3 brand new sandbox method
	1.4 brand new data binding process, now you can pass data from father node to child node
2. new Demo:
	new demo will show you how easy it is to create an ajax request and result display item
	and how simple it is when put in HTML code

now let's play~