Add release notes for mitaka thus far

Add release notes for patches that have landed in mitaka prior to
using reno for release notes management.

Change-Id: Icaa875c344e75888764a94aff941f442126403df

releasenotes/notes/catalog-caching-12f2532cfb71325a.yaml

@@ -0,0 +1,7 @@
+---
+features:
+  - >
+    [`bug 1489061 <https://bugs.launchpad.net/keystone/+bug/1489061>`_]
+    Caching has been added to catalog retrieval on a per user ID and project
+    ID basis. This affects both the v2 and v3 APIs. As a result this should
+    provide a performance benefit to fernet-based deployments.

releasenotes/notes/extensions-to-core-a0d270d216d47276.yaml

@@ -0,0 +1,17 @@
+---
+other:
+  - >
+    [`blueprint move-extensions <https://blueprints.launchpad.net/keystone/+spec/move-extensions>`_]
+    If any extension migrations are run, for example: ``keystone-manage db_sync
+    --extension endpoint_policy`` an error will be returned. This is working as
+    designed. To run these migrations simply run: ``keystone-manage db_sync``.
+    The complete list of affected extensions are: ``oauth1``, ``federation``,
+    ``endpoint_filter``, ``endpoint_policy``, and ``revoke``.
+  - >
+    The ``keystone-paste.ini`` file must be updated to remove extension
+    filters, and their use in ``[pipeline:api_v3]``.
+    Remove the following filters: ``[filter:oauth1_extension]``,
+    ``[filter:federation_extension]``, ``[filter:endpoint_filter_extension]``,
+    and ``[filter:revoke_extension]``. See the sample `keystone-paste.ini
+    <https://git.openstack.org/cgit/openstack/keystone/tree/etc/keystone-paste.ini>`_
+    file for guidance.

releasenotes/notes/httpd-keystone-d51b7335559b09c8.yaml

@@ -0,0 +1,5 @@
+---
+other:
+  - The file ``httpd/keystone.py`` has been deprecated in favor of
+    ``keystone-wsgi-admin`` and ``keystone-wsgi-public`` and may be
+    removed in the 'O' release.

releasenotes/notes/ldap-emulation-91c4d535eb9c3d10.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - >
+    [`bug 1515302 <https://bugs.launchpad.net/keystone/+bug/1515302>`_]
+    Two new configuration options have been added to the ``[ldap]`` section.
+    ``user_enabled_emulation_use_group_config`` and
+    ``project_enabled_emulation_use_group_config``, which allow deployers to
+    choose if they want to override the default group LDAP schema option.

releasenotes/notes/oslo.cache-a9ce47bfa8809efa.yaml

@@ -0,0 +1,16 @@
+---
+upgrade:
+  - >
+    Keystone now uses oslo.cache. Update the ``[cache]`` section of
+    ``keystone.conf`` to point to oslo.cache backends:
+    ``oslo_cache.memcache_pool`` or ``oslo_cache.mongo``, refer to the
+    sample configuration file for examples. See `oslo.cache
+    <http://docs.openstack.org/developer/oslo.cache>`_ for additional
+    documentation.
+other:
+  - >
+    ``keystone.common.cache.backends.memcache_pool``,
+    ``keystone.common.cache.backends.mongo``, and
+    ``keystone.common.cache.backends.noop`` are deprecated in favor of
+    oslo.cache backends. The keystone backends will be removed in the 'O'
+    release.

releasenotes/notes/request_context-e143ba9c446a5952.yaml

@@ -0,0 +1,7 @@
+---
+features:
+  - >
+    [`bug 1500222 <https://bugs.launchpad.net/keystone/+bug/1500222>`_]
+    Added information such as: user ID, project ID, and domain ID to log
+    entries. As a side effect of this change, both the user's domain ID and
+    project's domain ID are now included in ``auth_context``.

releasenotes/notes/s3-aws-v4-c6cb75ce8d2289d4.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - >
+    [`bug 1473042 <https://bugs.launchpad.net/keystone/+bug/1473042>`_]
+    Keystone's S3 compatibility support can now authenticate using AWS
+    Signature Version 4.

releasenotes/notes/v3-endpoints-in-v2-list-b0439816938713d6.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - >
+    [`bug 1480270 <https://bugs.launchpad.net/keystone/+bug/1480270>`_]
+    Endpoints created when using v3 of the keystone REST API will now be
+    included when listing endpoints via the v2.0 API.