[npm] Downgrade React Native dependency to 0.25.1
[npm] Downgrade React Native dependency to 0.25.1

artsy/eigen,artsy/eigen,artsy/emission,artsy/eigen,artsy/emission,artsy/eigen,artsy/eigen,artsy/eigen,artsy/emission,artsy/emission,artsy/emission,artsy/emission,artsy/emission,artsy/eigen