Description of problem: In "Manage columns" dialog there's selection for "Node" column. For non-priv user, even if it's checked the column is not displayed, therefore this selection should be removed or disabled.

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

How reproducible: always

Steps to Reproduce:
1. Login as non-priv user
2. Open VirtualMachines page, click on "Manage columns" icon, check "Node" and Save
3.

Actual results: No effect

Expected results: The "Node" checkbox is hidden/disabled

Additional info: