match to skate latest api and fix preact unmounting cleanup

[Hotell]

Closes #5

• applied preact hack

[Hotell]

original is correctly replaced with empty div, although Preact won't call componentWillUnmount on mounted wrapped component ...

[Hotell]

Also it's not a shadowDOM thing. Following wont trigger willUnmount as well ( pure Preact )

import { h, Component, render } from 'preact'
class App extends Component {
  render(){
    return <div>original</div>
  }
  componentDidMount(){
    console.log('hi')
  }
  componentWillUnmount(){
    console.log('bye!')
  }
}
const mountTo = document.getElementById("root")
let root;

  root = render(<App />, mountTo);
  console.log(root)
  setTimeout(()=>{
   // element is replaced bud willUnmount won't be called ... Preact BUG ?
    render(<div>replaced</div>, mountTo, root)
  },1400)

[treshugart]

Yeah, I don't have any experience here. Might be worth pinging @developit about this? It looks like unmounting at a node is in compat, but I don't want to place a dependency on that preactjs/preact#53.

[Hotell]

Re-review pls @treshugart

[treshugart]

Cool, thanks @Hotell!