fixes #1254 - initial support to pxeboot windows

removed puppet from Gem file requirement

this commit also tries to simplify the way we use bundler, in future commits,
we should add more logic of which gems to load based on configration file.

make sure foreman doesnt blow up when running without libvirt / virt gems

ensure facts importer works correctly also when importing from a report / rake task

ensures populate hosts rake task can run correctly

added basic ovirt vm show page, minor fixes in compute resource level

fixes #1574 - ovirt - add remove and show volumes

• volume and interface ordering is now working
• removed include blank because it is a duplicate of the Blank ovirt-template.
• bootable is disabled when editing a vm, because currently I don't handle volume updates. just add and remove of a volume....

refs #1452 - cant change values while in orcehstation as its already a frozen hash

refs #1452 - fixed incorrect condition

refs #1452 - fixed incorrect condition