Merge pull request #59 from tomkur/master

Fix return value of AsyncStorage methods

Author: RealOrangeOne

src/api/AsyncStorage.js

@@ -4,8 +4,14 @@
 
 function wrap(value, callback) {
   return Promise.resolve(value).then(
-    obj => callback && callback(null, obj),
-    err => callback && callback(err)
+    obj => {
+      callback && callback(null, obj);
+      return obj;
+    },
+    err => {
+      callback && callback(err);
+      throw err;
+    }
   );
 }