Description of problem:
User couldn't delete deployment through provided Delete option on web console 

Version-Release number of selected component (if applicable):
openshift v1.4.0-alpha.0+e76e0e8 (latest origin-web-console, the latest commit is 6a78401)
kubernetes v1.4.0+776c994
etcd 3.1.0-alpha.1


How reproducible:
Always

Steps to Reproduce:
1.Create deployment
# cat >> hello-deployment-1.yaml << EOF
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: hello-openshift
spec:
  replicas: 4
  template:
    metadata:
      labels:
        app: hello-openshift
    spec:
      containers:
      - name: hello-openshift
        image: openshift/hello-openshift
        ports:
        - containerPort: 80
  strategy:
    rollingUpdate:
      maxSurge: 3
      maxUnavailable: 2
    type: RollingUpdate

EOF
# oc create -f hello-deployment-1.yaml
deployment "hello-openshift" created
2. Go to Applications -> Deployments -> select 'hello-openshift' -> Actions -> Delete

Actual results:
2. Give error message: Deployment 'hello-openshift'' could not be deleted

Expected results:
2. Deployment should be deleted successfully

Additional info:
1. Delete deployment via CLI works as expected
# oc delete deployment hello-openshift
deployment "hello-openshift" deleted
2. Delete DeploymentConfigurations on web console works as expected