Merge tag 'debian/4.4.0-2' into develop

Release 4.4.0-2
Use correct SeaBIOS binary which supports Xen (Closes: #737905).
Add versioned build-dep on seabios to ensure bios-256k.bin is present.
Merge branch 'feature/seabios' into develop
Really update config.{sub,guess}
Set library path to multi-arch location
merge patched-feature/multiarch into feature/multiarch
Make library packages multi-arch: same
Use debhelper compat level 9
Release 4.4.0-3
Merge branch 'release/4.4.0-3'
Merge tag 'debian/4.4.0-3' into develop

Release 4.4.0-3
Also remove unused OCaml packages from control file
Merge branch 'feature/multiarch' into develop
Fix changelog
Correct contents of /etc/xen/scripts/hotplugpath.sh (Closes: #706283)
Drop references cpuperf-xen and cpuperf-perfcntr. (Closes: #733847)

This tool appears to have been removed upstream in 2006.
Install xentrace_format(1), xentrace(8) and xentop(1). (Closes: #407143)
Release 4.4.0-4
Merge branch 'release/4.4.0-4'