Added missing $

My ignorance

Fixed path of RN local Maven repo

Summary:
The old path only work for 'example-redux'

This is a temporary solution to #292

closes #291

closes #276

Generate controllerID before using it in tabs.map

TopTabParams are a subset of ScreenParams, moved the properties that
are shared by both classes to BaseScreenParams.
This change was needed to report screen changes properly in ViewPagerScreen

Remove react hacks

This commit removes necessary hacks which were introduced due to
limitations of previous React Native apis.

Mount/unmount logic isn't coupled to view attached/detached
to window callbacks. Instead, `unmountReactApplication` was added.
We can safely call it when a screen is popped and when application is
reloaded in debug.