* Fix snd2png check on TW: don't use PNM but PNG (#885)
* Fix test failures on Tumbleweed (#883)
* add debian ovmf to locations array
* Add offline mode for script_output
* Xen: Support multiple HDDs
* svirt: Set NUMDISKS=4 when RAIDLEVEL is defined
* Replacement of hot filehandlers for Mojo::Log (#876)
* Fix scale_timeout call in wait_serial function
- bump to 4.5 to be in sync with openQA
OBS-URL: https://build.opensuse.org/package/show/devel:openQA:tested/os-autoinst?expand=0&rev=55
