Sucess message shown while deleting a non empty psuedo folder for the first time

[Ashish Chandra]

Steps to reproduce:

1) Create a container and create a psuedo folder into it.
2) Navigate to newly created psuedo folder, and upload a couple of objects.
3) Navigate to object store - > Containers in left pane.
4) Click on name of the container, to get the container view.
5) Now against the newly created psuedo folder, click on Delete Object.

A popup is displayed displaying message "Success: Deleted Object: new-psuedo-folder"

Again try to delete the psuedo folder for the second time, this time correct message is shown in the popup.
"Error: Unable to delete object: new-psuedo-folder"

Please refer to attached Video, to see the process in action.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/120755

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/120755
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=1565819d597b1abbd3934c6b2ec3d4e10a4a0549
Submitter: Jenkins
Branch: master

commit 1565819d597b1abbd3934c6b2ec3d4e10a4a0549
Author: Masco Kaliyamoorthy <email address hidden>
Date: Thu Sep 11 17:21:46 2014 +0530

    wrong message while deleting non empty pseudo folder

    while try to delete a pseudo folder which contains some objects is
    showing the success message but the folder is not actually deleted

    added a check similar to delete container, the new check will
    verify the pseudo folder is empty before call the swift client
    call. if the folder is not empty it will throw a exception
    with a appropriate error message and the message will be shown to
    the user in the pop up message box.

    Change-Id: I0bbea6ef6ac26ef357240610535b9d84053a89c2
    Closes-Bug: #1347598