Pin kombu and anyjson versions

The minimum version of kombu in the requirements
list has been updated to ensure that compatible
kombu and msgpack libraries are used across all
projects. That update also requires an update
to anyjson.

Addresses bug #1134575

Change-Id: I1520af1315fe649f52ab62769164dc67f4396651
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Sync install_venv_common from oslo

Change-Id: Idd7fd1310b58e81ceb9ae06bb1e9710aee1f4a65
On deleting an image, its image_tags are not deleted.

When the image is deleted, the delete operation also marks all the images' tags for deletion.

Fixes bug 1195346

Change-Id: I9958079437840860264648a8b0ce2ec2ff7a30d6
Fixes image-download error of v2

When trying to retrieve a Glance image using the v2 api, user will
get an error:

'utf8' codec can't decode byte 0xcc in position 1217: invalid continuation byte

This is because Glance client expects a response of type content-type:
application/octet-stream but it's getting a Content-Type:

text/html; charset=UTF-8 Transfer-Encoding: chunked

The root cause is Glance will return the image data from cache if
there is. However, in method _process_v2_request, the content type
has never been configured. See:
https://github.com/openstack/glance/blob/master/glance/api/middleware/cache.py#L162

Fixes bug 1193310

Change-Id: Icab5e28db63455358ab3919bd94c484411987e39
Merge "Sync install_venv_common from oslo"
Merge "Pin kombu and anyjson versions"
Merge "Fixes image-download error of v2"
Merge "On deleting an image, its image_tags are not deleted."