Sync CHANGELOG with CE

CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
-v 8.0.0 (unreleased)
+v 8.0.1
+  - Improve CI migration procedure and documentation
+
+v 8.0.0
   - Fix Markdown links not showing up in dashboard activity feed (Stan Hu)
   - Remove milestones from merge requests when milestones are deleted (Stan Hu)
   - Fix HTML link that was improperly escaped in new user e-mail (Stan Hu)
@@ -26,6 +29,42 @@ v 8.0.0 (unreleased)
   - Better performance for web editor (switched from satellites to rugged)
   - Faster merge
   - Ability to fetch merge requests from refs/merge-requests/:id
+  - Allow displaying of archived projects in the admin interface (Artem Sidorenko)
+  - Allow configuration of import sources for new projects (Artem Sidorenko)
+  - Search for comments should be case insensetive
+  - Create cross-reference for closing references on commits pushed to non-default branches (Maël Valais)
+  - Ability to search milestones
+  - Gracefully handle SMTP user input errors (e.g. incorrect email addresses) to prevent Sidekiq retries (Stan Hu)
+  - Move dashboard activity to separate page (for your projects and starred projects)
+  - Improve performance of git blame
+  - Limit content width to 1200px for most of pages to improve readability on big screens
+  - Fix 500 error when submit project snippet without body
+  - Improve search page usability
+  - Bring more UI consistency in way how projects, snippets and groups lists are rendered
+  - Make all profiles and group public
+  - Fixed login failure when extern_uid changes (Joel Koglin)
+  - Don't notify users without access to the project when they are (accidentally) mentioned in a note.
+  - Retrieving oauth token with LDAP credentials
+  - Load Application settings from running database unless env var USE_DB=false
+  - Added Drone CI integration (Kirill Zaitsev)
+  - Allow developers to retry builds
+  - Hide advanced project options for non-admin users
+  - Fail builds if no .gitlab-ci.yml is found
+  - Refactored service API and added automatically service docs generator (Kirill Zaitsev)
+  - Added web_url key project hook_attrs (Kirill Zaitsev)
+  - Add ability to get user information by ID of an SSH key via the API
+  - Fix bug which IE cannot show image at markdown when the image is raw file of gitlab
+  - Add support for Crowd
+  - Global Labels that are available to all projects
+  - Fix highlighting of deleted lines in diffs.
+  - Project notification level can be set on the project page itself
+  - Added service API endpoint to retrieve service parameters (Petheő Bence)
+  - Add FogBugz project import (Jared Szechy)
+  - Sort users autocomplete lists by user (Allister Antosik)
+  - Webhook for issue now contains repository field (Jungkook Park)
+  - Add ability to add custom text to the help page (Jeroen van Baarsen)
+  - Add pg_schema to backup config
+  - Removed API calls from CE to CI
 
 v 7.14.0
   - Allow displaying of archived projects in the admin interface (Artem Sidorenko)