Bug #3006: fix wrong uid column set in migrators
bug #2951: This reverts commit 76164fa1d031f58d21ee4621cef07bcc46c9d5d4. Hypervisor RAW syntax for default configuration files is RAW = "raw_value"

(cherry picked from commit 984bad9fe8cfbe09fdf57ec3bb440567a0a6b06c)