small login request fixes

app/actions/login.js

@@ -37,7 +37,7 @@ export function login(username, password) {
         password,
       }),
     };
-    return fetch('http://localhost:8000/api/token-auth', data)
+    return fetch('http://localhost:8000/api/token-auth/', data)
       .then(
         response => response.json())
       .then(

app/components/Login.js

@@ -30,7 +30,7 @@ class Login extends Component {
       <View>
         <TextInput
           placeholder="Username"
-          onChangeText={name => this.setState({ name })}
+          onChangeText={username => this.setState({ username })}
         />
         <TextInput
           placeholder="Password"