Configure Navigator Page transitions

[dxn7335]

Links

• http://facebook.github.io/react-native/releases/0.42/docs/navigation.html#react-navigation
• http://stackoverflow.com/questions/32505190/is-it-possible-to-change-transitions-in-react-native-navigator
• https://github.com/facebook/react-native/blob/master/Libraries/CustomComponents/Navigator/NavigatorSceneConfigs.js

Will need to use ConfigureScene in Navigator and Navigator.SceneConfigs for transition animations

[scottdj92]

Are we encapsulating the whole app inside of a Navigator instance? It'd be good to simply call a function/pass in a prop to navigate from one page to the next.