Created a new user to manage Katello/Foreman.

The following command produces and error:

1. hammer -u admin -p changeme user list
   undefined method `key?' for #<JSON::Ext::Generator::State:0x0000000e782a68>

When performing a user info, I can get the first two (admin and a hidden user that I don't know how it was created). The rest of the users info fail with an error:

1. hammer -u admin -p changeme user info --id 1
   Id: 1
   Login: admin
   Name: Admin User
   Email: root@hq.ltg
   Admin: yes
   Authorized by: Internal
   Last login: 2014/05/30 20:09:43
   Created at: 2014/05/29 16:49:01
   Updated at: 2014/05/30 20:09:43

1. hammer -u admin -p changeme user info --id 2
   Id: 2
   Login: hidden-0zd9qe
   Name:
   Email: sm79ogUAtw@localhost
   Admin: no
   Authorized by: Internal
   Last login:
   Created at: 2014/05/29 16:49:04
   Updated at: 2014/05/29 16:49:04

1. hammer -u admin -p changeme user info --id 3
   undefined method `key?' for #<JSON::Ext::Generator::State:0x000000102d9c80>