User table with id, name, email, password
friend table with id, user1id, user2id - how to check for mutual friendship?
// "react-navigation": "^2.7.0" "react-native-router-flux": "^4.0.0-beta.31"
// <Router>
// <Stack key="root">
// <Scene key="home" component={HomeScreen}/>
// <Scene key='user' component={Signup} />
// <Scene key='support' component={Signup} />
// {/* <Scene key='loggedIn' component={ResourcesUser} type={Actions.REPLACE} /> */}
// <Scene hideNavBar key='root'>
// <Scene key='tab-bar' tabBarStyle={{backgroundColor: "black"}} tabs={true}>
// <Scene key='tab-one' icon={TabIcon}>
// <Scene key='loggedIn' title='yay!' component={ResourcesUser} type={Actions.REPLACE} icon={TabIcon}></Scene>
// </Scene>
// <Scene key='tab-two' title='more' icon={TabIcon}>
// <Scene key='loggedIn' title='logged in' component={ResourcesUser} type={Actions.REPLACE} ></Scene>
// </Scene>
// </Scene>
// </Scene>
// </Stack>
// </Router>