Add missing release notes

Change-Id: I80d85df02ddb5a9e065080a95d05c5bbc38d4932
Closes-Bug: 1558825

releasenotes/notes/bp-angular-performance-strict-di-3cf325d8bfca8487.yaml

@@ -0,0 +1,10 @@
+---
+features:
+  - >
+    [`blueprint angular-performance-strict-di <https://blueprints.launchpad.net/horizon/+spec/angular-performance-strict-di>`_]
+    This blueprint enforces strict dependency injection in AngularJS code, for
+    improvements to minification and thus performance.
+
+upgrade:
+  - All AngularJS code must use explicit dependency injection. See
+    https://docs.angularjs.org/guide/di#using-strict-dependency-injection

releasenotes/notes/bp-integrate-magic-search-03a97d4431d7c3d1.yaml

@@ -0,0 +1,10 @@
+---
+features:
+  - >
+    [`blueprint integrate-magic-search <https://blueprints.launchpad.net/horizon/+spec/integrate-magic-search>`_]
+    Magic Search was an external dependency that was being heavily modified or
+    overwritten in sections, so the used parts of code base have been moved
+    into Horizon.
+
+upgrade:
+  - Horizon no longer requires Magic Search as an external dependency.

releasenotes/notes/bp-integration-tests-hardening-8e94e87bc548c1fe.yaml

@@ -0,0 +1,7 @@
+---
+features:
+  - >
+    [`blueprint integration-tests-hardening <https://blueprints.launchpad.net/horizon/+spec/integration-tests-hardening>`_]
+    This blueprint reduced failures in the integration tests caused by
+    structure or styling changes, by making them less dependent on aspects of
+    page structure, such as ordering or CSS classes.

releasenotes/notes/bp-keystone-federation-protocol-mapping-a6ea9f7c35d2d6f0.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - >
+    [`blueprint keystone-federation-protocol-mapping <https://blueprints.launchpad.net/horizon/+spec/keystone-federation-protocol-mapping>`_]
+    This blueprint provides CRUD interaction for identity provider protocols.

releasenotes/notes/bp-pagination-for-flavor-f603fd7630e13756.yaml

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+---
+features:
+  - >
+    [`blueprint pagination-for-flavor <https://blueprints.launchpad.net/horizon/+spec/pagination-for-flavor>`_]
+    Added forward and backward pagination to the Flavors panel