[ACTIVITY] report week ending 18 Mar

Progress (for a week-and-a-half) * UM-2 [QEMU upstream maintainership] + Lots of freeze-related work (softfreeze was last week and we tagged rc0 this week) + Code review of other peoples's stuff to go into the release + Assembling arm pullreqs + Investigating an intermittent failure in one of our test cases on s390 host, which seems like it may be a bug in the s390 h/w-accelerated zlib * QEMU-420 [GICv4 emulation] + Still debugging...

-- PMM