Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Block pull request

# gpg: Signature made Tue 25 Mar 2014 14:34:45 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  mirror: fix early wake from sleep due to aio
  mirror: fix throttling delay calculation
  Fixed various typos
  qemu-img: mandate argument to 'qemu-img check --repair'
  osdep: initialize glib threads in all QEMU tools

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