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

# gpg: Signature made Tue 01 Nov 2016 12:47:36 GMT
# gpg:                using RSA key 0xBDBE7B27C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg:                 aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg:                 aka "Jeffrey Cody <codyprime@gmail.com>"
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98  D624 BDBE 7B27 C0DE 3057

* remotes/cody/tags/block-pull-request:
  blockjobs: fix documentation
  blockjobs: split interface into public/private, Part 1
  Blockjobs: Internalize user_pause logic
  blockjob: centralize QMP event emissions
  Replication/Blockjobs: Create replication jobs as internal
  blockjobs: Allow creating internal jobs
  blockjobs: hide internal jobs from management API
  block/gluster: fix port type in the QAPI options list
  block/gluster: improve defense over string to int conversion
  block: Turn on "unmap" in active commit
  block/gluster: memory usage: use one glfs instance per volume
  block: add gluster ifdef guard checks for SEEK_DATA/SEEK_HOLE support
  rbd: make the code more readable
  qapi: add release designator to gluster logfile option

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