Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2018-07-31' into staging

Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2018-07-31' into staging

Monitor patches for 2018-07-31 (3.0.0-rc3)

# gpg: Signature made Tue 31 Jul 2018 16:46:16 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-monitor-2018-07-31:
  monitor: temporary fix for dead-lock on event recursion

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>