Description of problem:
When I tested on devenv_2340, I firstly created an application. Then I tried to enable jenkins to it. But when I clicked the "Add Jenkins" button in the enable jenkins page, the page will stay on , and cannot add jenkins server succuessfully.

Version-Release number of selected component (if applicable):
devenv_2340

How reproducible:
always

Steps to Reproduce:
1.Go to the website and log in , ensure there's no jenkins server app in the account.
2.Create an application, eg.wordpress, Jboss EAP.
3.Go to the the app detail page :/app/console/applications/<app name>
4.Clicked the "Enable Jenkins builds" link.
5.Input a valid app name in the following add jenkins page.
6.Clicked "Add jenkins" button.
  
Actual results:
The page will stay without any skip. And the jenkins server cannot be added successfully.

Expected results:
Jenkins server should be added successfully, and the page should redirected to a successfully added page with jenkins server's username and password shown.

Additional info:
If I created a jenkins server application first in this account as steps below, the enable jenkins operation will be successful without error.

1.Go to the website and log in , ensure there's no jenkins server app in the account.
2.Create an application, eg.wordpress, Jboss EAP.
3.Create an jenkins server app.
4.Go the the app detail page :/app/console/applications/<app name>
5.Clicked the "Enable Jenkins builds" link.
6.Clicked "Add jenkins" button.