Description of problem:

I have noticed that the code that we used to check if there is an iso update to ovirt-node host got removed. Although shouldAlertUpgrade() is still available in HostGeneralModel.java [1].

<snip>
-   VDS vds = hostGeneralModel.getEntity();
-                                String [] hostOsInfo =
-vds.getHostOs().split("-"); //$NON-NLS-1$ //$NON-NLS-2$
-                                for (int counter = 0; counter <
- hostOsInfo.length; counter++) {
-                                    hostOsInfo[counter] =
- hostOsInfo[counter].trim();
-                                }
- hostGeneralModel.setHasUpgradeAlert(
-                                    shouldAlertUpgrade(
-                                        isos,
-                                        hostOsInfo
-                                        )
-                                );
</snip>

From my investigation this happened when the code got split.
commit c20ebaee3f771ef7893f0be16f47e915d84cca80
Date:   Fri Mar 7 12:06:12 2014 -0500
    webadmin: host right click menu is missing 'reinstall' option 


[1] https://github.com/oVirt/ovirt-engine/blob/master/frontend/webadmin/modules/uicommonweb/src/main/java/org/ovirt/engine/ui/uicommonweb/models/hosts/HostGeneralModel.java#L651