Merge pull request #3 from devshackio/v3

Fix reference.js / disconnect.js missing references

Author: Salakar

lib/modules/database/disconnect.js

@@ -1,5 +1,7 @@
+/* @flow */
 
 import { NativeModules } from 'react-native';
+import promisify from './../../utils/promisify';
 import Reference from './reference';
 
 const FirestackDatabase = NativeModules.FirestackDatabase;

lib/modules/database/reference.js

@@ -5,6 +5,7 @@ import { NativeModules } from 'react-native';
 import promisify from './../../utils/promisify';
 import { ReferenceBase } from './../base';
 import Snapshot from './snapshot.js';
+import Disconnect from './disconnect.js';
 import Query from './query.js';
 
 const FirestackDatabase = NativeModules.FirestackDatabase;