Description of problem: After a deployment is started, the deployment name can be edited which will split the logs across separate root directories. The same functionality is disabled in the webui

QCI Media Version: QCI-1.1-RHEL-7-20170209.t.1

How reproducible: 100%

Steps to Reproduce:
1. Install QCI from iso
2. Create any type of deployment
3. Start the deployment
4. Attempt to change the name of the deployment using the fusor rest api

PUT https://<fusor ip>/fusor/api/v21/deployments/<deployment id>
json: {'deployment':{'name', 'newdeploymentname'}}

Actual results: Request returns HTTP 200 and a newdeploymentname folder is created in the foreman directory on satellite (/var/log/foreman/deployments/<newdeploymentname>-<deployment id>

Expected results: Request returns a 400 error and the deployment name change is not allowed