webadmin: Vms - Vms:Hosts autocomplete is incorrect

In Vms tab the search autocompletion displays
Vms:Hosts the right completion should be
Vms:Host

Change-Id: I9d3403dc91462cd9c1ad788c3bd763efb59638aa
Bug-Url: https://bugzilla.redhat.com/1005787
Signed-off-by: Ravi Nori <rnori@redhat.com>