utf8.decode is not a function

For anyone else getting this error:

There's a naming collision between the "utf8" package and react-native's internal utf8 library.

@eacbkk forked utf8 to rename it:
https://github.com/eacbkk/utf8.js

I forked @tianling536's fork of react-native-fs to avoid the utf8 error and get RN 0.5x.x support:

https://github.com/Gregor1971/react-native-fs

... and this
https://github.com/Gregor1971/redux-persist-fs-storage