Merge branch 'develop' of https://github.com/swict/LifeplusAndroid into develop

app/src/main/java/kr/co/zumo/app/lifeplus/zumo/sns/SignInKakao.java

@@ -71,9 +71,7 @@ public class SignInKakao extends SignIn<Activity> {
       Session.getCurrentSession().checkAndImplicitOpen();
     }
     else {
-      if (callback != null) {
-        callback.signIn(null, 0);
-      }
+      Session.getCurrentSession().open(AuthType.KAKAO_LOGIN_ALL, context);
     }
   }