Update openstack.common.

The following things got updated mainly:
- notifier: removed deprecated grizzly features.
- rpc: enabled message envelope.

Change-Id: I830f15363d21bcee6e93771f9457408d2adff2d8
update devstack instructions for cinder

update devstack documentation to include instructions on how to
enable cinder notifications

fix docstring in volume notifications to say volume instead of compute

Change-Id: I9491b4384b212f973211da7e7f716cd7d11d8052
Imported Translations from Transifex

Change-Id: I0901dcab73ef5be665b5e9eddb5e142e434d6d74
Update to the lastest loopingcall from oslo.

This needs threadgroup as well, as it uses loopingcall.

Change-Id: I1b4fb1582396c0fa3df12645f2c57aab123166d1
Merge "Update openstack.common."
Merge "update devstack instructions for cinder"
Merge "Imported Translations from Transifex"
Merge "Update to the lastest loopingcall from oslo."
Fix tests after nova changes

Signed-off-by: Julien Danjou <julien@danjou.info>

Change-Id: I8cf023cbc727839075eda7e853694ab16d3f94af
pipeline, publisher, transformer: reorganize code

This move a bit of code to make it less Ceilometer centric.
This is part of blueprint oslo-multi-publisher

Change-Id: I2eb174cb3000c9cca7d3771a2ab66a1a948f5cd9
Signed-off-by: Julien Danjou <julien@danjou.info>
transformer, publisher: move down base plugin classes

Blueprint: oslo-multi-publisher

Change-Id: I46768ac99dff2d5c8597916584ecef553e151531
Signed-off-by: Julien Danjou <julien@danjou.info>
Extend swift middleware to collect number of requests.

Current swift middleware does not collect # of requests against
Swift, this patch adds the features. # of requests will be under
the following topic storage.api.request

Change-Id: I1b408d01344c9a986af1278a0b7fe3405051adca