domcom 0.8.0-- based on React

Now Domcom is based on React
this version of domcom is a whole rewrite

• the most important api is component = dc(config), where config is object like{data, view, ...}
• below is the key api to use domcom:
  component.mount, component.update, component.unmount, component.watch, component.copy, component.extend
• see demo and todomvc to learn how to use domcom