Update openstack-common in prep for graceful stop

Now at oslo-incubator version 95c7598917c7cd16f68a253a2048c21b3df9dfda

Change-Id: I2655ba2b9a0fb5048576f2b738d2af52c76c1d05
Partial-Bug: #1304244
Make events return by insertion order

We fixed the table by having the ID available, but the query uses an
index, so MySQL will return the rows in index order, which is not
necessarily primary key order. We need to explicitly ask that it be
returned in primary key order. This should be a free operation on MySQL.

Change-Id: I48d6260e01736fc7475c13cf736968dbf8eda206
Order and separate imports properly

Alphabetical and separated into system modules and libs.

Change-Id: I367245b10ca428d68350e3f010c17dea7e38fe67
Fix all flake8 problems.

Change-Id: Ibd36add2530a144122a0c3a88f31b3df1b838d24
Distribute create_heat_domain

Rename it to heat-keystone-setup-domain and ship it in bin with the
other helper scripts. This will make it consumable by automated systems
and packaging.

Change-Id: I7914869377cd08b6201007aa0eb6b8a70d763254
Skip tests when loading plugins

All python files in plugins were automatically loaded which would
add the dependencies of the tests to the plugins.

Let skip the files in the .tests. namespace

Closes-Bug: #1292655
Change-Id: I25eac87559b5852e9645fbb84c8b4d07b4c1ff42
Merge "Order and separate imports properly"
Merge "Fix all flake8 problems."
Merge "Distribute create_heat_domain"
Merge "Make events return by insertion order"
Merge "Update openstack-common in prep for graceful stop"
Merge "Skip tests when loading plugins"