Xuebin Dong
Xuebin Dong

It's necessary to append "Options, Methods and Events" sections of all patternfly-webcomponents to demo page. For API doc format, we can refer to this [page](https://github.com/webcomponents/element-boilerplate).
We need to prompt the users to use node.js 4.0+, or else they will get the following error when they run "gulp serve" 
If we got a function property(**persistentCallbackFn**) for web compoment as shown below, maybe creating custom element via js is better than literal markup because we can encapsulate any complex lines...