Update oslo requirements to use juno dev versions

Update the versions for oslo.config, oslo.messaging, and oslo.rootwrap
so the releases under development are available for developers running
unit tests.

Change-Id: I9bdceb1a4f8ce81778b66fcacdfec58e23160519
Don't use SQLAlchemy 9 version < 0.9.7

Versions 0.9.2, 0.9.3 implement Table.kwargs attribute as immutable dict.
It prevents setting defined storage engine for created tables.

Versions 0.9.5 and 0.9.6 are not very good. We could use 0.9.4 though
but not sure if it's worth to explicitly mention it in requirements.

Issue with ummutable dict was discovered during testing of
https://review.openstack.org/#/c/81334/ but issue doesn't occur at the
gate because of used SQLAlchemy version doesn't contain immutable dict.

Change-Id: I2703b2a21365a78fb2e9226680a6ef542b759b4f
Update openstack-doc-tools to at least 0.17

openstack-doc-tools 0.17 provides the new openstack-dn2osdbk script
needed to build the HOT guide.

Changes since version 0.16.1:

* Added support for *-manage CLI doc generation.
* ``openstack-dn2osdbk``: Converts Docutils Native XML to docbook.
* ``openstack-doc-test``: Handle the upcoming HOT guide.
* ``autohelp.py``: Provide our own sanitizer.
* ``autohelp.py``: Use the oslo sample_default if available.
* ``openstack-doc-test``: Correctly handle SIGINT.
* Various smaller fixes and improvements.

Change-Id: If3c42a50c413eed7efa1f79bf05adfe4eede9a8d
Add xstatic-packaged JavaScript libraries for Horizon

Those libraries are removed from Horizon's static directory, and
packaged separately for easier maintenance and versioning.

They package sources are going to be hosted on StackForge, see
patch https://review.openstack.org/#/c/95716/

Change-Id: I3efd9527d9be8c263458d0531f7a4c9c49d75d01
Partially-implements: blueprint remove-javascript-bundling
Merge "Don't use SQLAlchemy 9 version < 0.9.7"
Add new library oslo.utils

Add the new library oslo.utils so projects can start adopting it.

Change-Id: I9e61adfac71f159e3a6aa77cbcbb26279dc42869
Merge "Update openstack-doc-tools to at least 0.17"
Merge "Add xstatic-packaged JavaScript libraries for Horizon"
Merge "Add new library oslo.utils"