Merge pull request #2 from react-native-jax/apollo

Set graph.cool api url

Delete item with apollo

Add deviceId to items

Implement optimistic response when creating item

Create item with apollo

Load items list with apollo

Integrate with react-apollo

Refactor how to combine reducers

Update README

Add redux-persist

Refactor to use redux

Remove propTypes from screen component

Remove unused code from ItemScreen

Add eslint dev dependencies