RHOS 4 and 5 provisioning
Merge pull request #1303 from sshveta/rhos4and5

Rhos4and5
Redhat changed to RHEV in catalog item type
Dialog Bug work around added
Merge pull request #1341 from sshveta/dialogbzfix

Dialog Bug work around added
Merge pull request #1340 from sshveta/redhatfix

Redhat changed to RHEV in catalog item type