Decorator broken

When using the built in decorator with class syntax the error 'cannot call class as function' is thrown by react. This is related to the extra parameters of the decorator. Changing the decorator to pass the parameters into another function that then applies the HOC logic fixes this:

**FIX**:
```
const Lazy = (height, offset) => (Comp) => {
return class Lazy extends React.Component {
constructor() {
super();
}

render() {
let {...other} = this.props;

return


}
}
}
export default Lazy;
```

I.E. notice: (height, offset) => (Comp) =>

**Offending Code:**
```
@LazyLoad({height: 50,offset: 100})
class ExampleClass extends React.Component{
```

i'll submit a PR if you will merge