Summary:
`error` is not an object so `error.message` will return 'undefined'
Closes https://github.com/facebook/react-native/pull/9271
Differential Revision: D3689980
Pulled By: javache
fbshipit-source-id: 07de946f04cdff0e8013faa2c5512c51c82147b9
Summary: Move all JS to a js/ subfolder so we get some overview of this folder again.
Reviewed By: bestander
Differential Revision: D3542598
fbshipit-source-id: 7637133fe4152f4d39e461b443b38510272d5bc8