angular version break point

It proves that directly edit DOM can't work well with angular
So here's a break point.
And I'll start a new branch to try if mxRender can work well with jQuery.
mxRender v 0.2 Beta

Rewrite render, more powerful!
Demo will update later~
mxRender v 0.2 Beta

Stable version.
Now these methods are available:
- css
- data
  - api
  - set
- loading
- fail
- preload/preload-once
- template
- callback/callback-once
All render jobs are asynchronous now.