babel plugin to extract server side only component methods

[alidcast]

First need to resolve #42

getIntialProps is only called in server now to bootstrap App.js with server logic

This method can be extracted at compile from the client bundle using a babel plugin. This would prevent unnecessary server code from being included in client bundle without relying on tree-shaking

[alidcast]

ctx.app.markupRenderes will be deprecated, so this isn't necessary anymore