Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 31 Oct 2016 16:10:07 GMT
# gpg: using RSA key 0x7F09B272C88F

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 31 Oct 2016 16:10:07 GMT
# gpg: using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (29 commits)
qapi: allow blockdev-add for NFS
block/nfs: Introduce runtime_opts in NFS
block: Mention replication in BlockdevDriver enum docs
qemu-iotests: test 'offset' and 'size' options in raw driver
raw_bsd: add offset and size options
qemu-iotests: Test the 'base-node' parameter of 'block-stream'
block: Add 'base-node' parameter to the 'block-stream' command
qemu-iotests: Test streaming to a Quorum child
qemu-iotests: Add iotests.supports_quorum()
qemu-iotests: Test block-stream and block-commit in parallel
qemu-iotests: Test overlapping stream and commit operations
qemu-iotests: Test block-stream operations in parallel
qemu-iotests: Test streaming to an intermediate layer
docs: Document how to stream to an intermediate layer
block: Add QMP support for streaming to an intermediate layer
block: Support streaming to an intermediate layer
block: Block all intermediate nodes in commit_active_start()
block: Block all nodes involved in the block-commit operation
block: Check blockers in all nodes involved in a block-commit job
block: Use block_job_add_bdrv() in backup_start()
...

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

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qemu-iotests: test 'offset' and 'size' options in raw driver

Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>