fixes #4590 - convert VMware SCSI controller type during creation

fixes #4612 show friendly CR names, fix typo in oVirt name

fixes #5453 - ensure all VMware compute attribute keys are symbolized

fixes #4380 [vSphere] allow selection of guest OS

fixes #4422 Implement available_images for oVirt to populate new image form

fixes #2438 - Add image build capability to vsphere using templates

fixes #4555 add ca certificate to ovirt

fixes #4123 - libvirt imaging support using backing volumes

fixes #4581 Implement available_networks API for VMware

fixes #4245 - return HTTP body for oVirt SSL CA certificate