Update CHANGELOG.md for 9.0.6

[ci skip]

CHANGELOG.md

@@ -2,6 +2,18 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
+## 9.0.6 (2017-04-21)
+
+- Bugfix: POST /projects/:id/hooks and PUT /projects/:id/hook/:hook_id no longer ignore the the job_events param in the V4 API. !10586
+- Fix MR widget bug that merged a MR when Merge when pipeline succeeds was clicked via the dropdown. !10611
+- Fix PlantUML integration in GFM. !10651
+- Show sub-nav under Merge Requests when issue tracker is non-default. !10658
+- Fix restricted project visibility setting available to users.
+- Removed orphaned notification settings without a namespace.
+- Fix issue's note cache expiration after delete. (mhasbini)
+- Display custom hook error messages when automatic merge is enabled.
+- Fix filtered search input width for IE.
+
 ## 9.0.5 (2017-04-10)
 - Add shortcuts and counters to MRs and issues in navbar.

changelogs/unreleased/2120-issues-search-bar-not-picking-up.yml

----
-title: Fix filtered search input width for IE
-merge_request:
-author:

changelogs/unreleased/30457-expire-note-destroy.yml

----
-title: Fix issue's note cache expiration after delete
-merge_request:
-author: mhasbini

changelogs/unreleased/30779-show-mr-subnav-issue-tracker.yml

----
-title: Show sub-nav under Merge Requests when issue tracker is non-default.
-merge_request: 10658
-author:

changelogs/unreleased/fix-29125.yml

----
-title: Display custom hook error messages when automatic merge is enabled
-merge_request:
-author:

changelogs/unreleased/fix-orphan-notification-settings.yml

----
-title: Removed orphaned notification settings without a namespace
-merge_request:
-author:

changelogs/unreleased/fix-project-visibility-setting.yml

----
-title: Fix restricted project visibility setting available to users
-merge_request:
-author:

changelogs/unreleased/mr-widget-bug-fix.yml

----
-title: Fix MR widget bug that merged a MR when Merge when pipeline succeeds was clicked
-  via the dropdown
-merge_request: 10611
-author:

changelogs/unreleased/plantuml-filter-after-highlight.yml

----
-title: Fix PlantUML integration in GFM
-merge_request: 10651
-author:

changelogs/unreleased/zj-api-fix-build-events.yml

----
-title: "Bugfix: POST /projects/:id/hooks and PUT /projects/:id/hook/:hook_id no longer ignore the the job_events param in the V4 API"
-merge_request: 10586
-author: