Description of problem:
When authentication from ovirt-optimizer fails (for example on incorrect password) no error is displayed in engine ui plugin.

Version-Release number of selected component (if applicable):
vt7

How reproducible:
100%

Steps to Reproduce:
1. Set up ovirt optimizer
2. put wrong password to /etc/ovirt-optimizer/ovirt-optimizer.properties
3. See status in engine webadmin portal clusters/ovirt-optimizer

Actual results:
Status: Solution received
No VM starts are requested at this moment.

Expected results:
Status: Authentication error


Additional info:
console.log of optimizer:
17:30:36,832 ERROR [org.ovirt.optimizer.service.OptimizerServiceBean] (http-/0.0.0.0:8080-1) Cluster 00000001-0001-0001-0001-000000000024 does not exist
17:30:36,833 INFO  [stdout] (http-/0.0.0.0:8080-1) 2014-10-23 17:30:36,832 ERROR [org.ovirt.optimizer.service.OptimizerServiceBean] Cluster 00000001-0001-0001-0001-000000000024 does not exist

it would be good to reflect this issue in webadmin portal (if possible)