Re-order CHANGELOG by merge request IDs

CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.5.1
-  - Fix error 500 on some merged merge requests
-  - Fix error 500 when trying to mark an already done todo as "done"
+  - Show Crowd login tab when sign in is disabled and Crowd is enabled (Peter Hudec)
+  - Fix a set of small UI glitches in project, profile, and wiki pages
+  - Restrict permissions on public/uploads
   - Fix the merge request side-by-side view after loading diff results
+  - Add when the Builds & Runners API changes got introduced
+  - Fix error 500 on some merged merge requests
   - Fix an issue causing the content of the issuable sidebar to disappear
+  - Fix error 500 when trying to mark an already done todo as "done"
   - Fix an issue where MRs weren't sortable
-  - Fix a set of small UI glitches in project, profile, and wiki pages
   - Issues can now be dragged & dropped into empty milestone lists. This is also
   possible with MRs
-  - Show Crowd login tab when sign in is disabled and Crowd is enabled (Peter Hudec)
-  - Restrict permissions on public/uploads
-  - Add when the Builds & Runners API changes got introduced
   - Re-add the newrelic_rpm gem which was removed without any deprecation or warning (Stan Hu)
   - Update sentry-raven gem to 0.15.6