frontend: template versions in popup dialogs

This patch adds template versions (base template + version instead of
just template) to all VM, pool and template dialogs

http://www.ovirt.org/index.php?title=Features/Template_Versions

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1037478
Change-Id: I26f3ddba7833dd257bc8a069a772ad192352d1a2
Signed-off-by: Arik Hadas <ahadas@redhat.com>