Update CHANGELOG.md for 9.1.1

[ci skip]

CHANGELOG.md

@@ -2,6 +2,21 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
+## 9.1.1 (2017-04-26)
+
+- Add a transaction around move_issues_to_ghost_user. !10465
+- Properly expire cache for all MRs of a pipeline. !10770
+- Add sub-nav for Project Integration Services edit page. !10813
+- Fix missing duration for blocked pipelines. !10856
+- Fix lastest commit status text on main project page. !10863
+- Add index on ci_builds.updated_at. !10870 (blackst0ne)
+- Fix 500 error due to trying to show issues from pending deleting projects. !10906
+- Ensures that OAuth/LDAP/SAML users don't need to be confirmed.
+- Ensure replying to an individual note by email creates a note with its own discussion ID.
+- Fix OAuth, LDAP and SAML SSO when regular sign-ups are disabled.
+- Fix usage ping docs link from empty cohorts page.
+- Eliminate N+1 queries in loading namespaces for every issuable in milestones.
+
 ## 9.1.0 (2017-04-22)
 - Added merge requests empty state. !7342

changelogs/unreleased/30306-transaction-while-moving-issues-to-ghost-user.yml

----
-title: Add a transaction around move_issues_to_ghost_user
-merge_request: 10465
-author:

changelogs/unreleased/31174-project-integration-service-sub-nav.yml

----
-title: Add sub-nav for Project Integration Services edit page
-merge_request: 10813
-author:

changelogs/unreleased/31280-fix-showing-issues-from-pending-delete-projects.yml

----
-title: Fix 500 error due to trying to show issues from pending deleting projects
-merge_request: 10906
-author:

changelogs/unreleased/add_index_on_ci_builds_updated_at.yml

----
-title: Add index on ci_builds.updated_at
-merge_request: 10870
-author: blackst0ne

changelogs/unreleased/dm-fix-individual-notes-reply-attributes.yml

----
-title: Ensure replying to an individual note by email creates a note with its own
-  discussion ID
-merge_request:
-author:

changelogs/unreleased/dm-fix-oauth-user-creation.yml

----
-title: Fix OAuth, LDAP and SAML SSO when regular sign-ups are disabled
-merge_request:
-author:

changelogs/unreleased/fix-gb-fix-blocked-pipeline-duration.yml

----
-title: Fix missing duration for blocked pipelines
-merge_request: 10856
-author:

changelogs/unreleased/fix-gb-fix-incorrect-commit-status-badge-text.yml

----
-title: Fix lastest commit status text on main project page
-merge_request: 10863
-author:

changelogs/unreleased/fix-usage-ping-doc-link.yml

----
-title: Fix usage ping docs link from empty cohorts page
-merge_request:
-author:

changelogs/unreleased/sh-optimize-milestone-polymorphic-url.yml

----
-title: Eliminate N+1 queries in loading namespaces for every issuable in milestones
-merge_request:
-author:

changelogs/unreleased/tc-realtime-every-pipeline-on-mr.yml

----
-title: Properly expire cache for all MRs of a pipeline
-merge_request: 10770
-author: