Use Animated from React Native

[necolas]

animatedjs/animated has not kept up with React Native's changes to Animated. Moving back to copy-paste from React Native should make it easier to ensure API compatibility.

See #714 #688 #684

[vaukalak]

What is the issue of making react-native a dependency of react-native-web and just expose there api? Or maybe we should create an issue for react-native to move js animations part to separate module?

[necolas]

I'm not going to have everyone install the whole of react native to do this. Yeah I don't know why it hasn't been extracted from react native. That was the point of the animated repo but it hasn't worked out that way

[piranna]

Or maybe we should create an issue for react-native to move js animations part to separate module?

We could open the issue, or we could do the separated module ourselves to see if they adopt it.

Anyway, since this is already merged in master, can it be published to npm? :-)