Move changelog entry to 7.14.1

CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.0.0 (unreleased)
-  - Fix Error 500 in API when accessing a group that has an avatar (Stan Hu)
   - Remove user OAuth tokens from the database and request new tokens each session (Stan Hu)
   - Only show recent push event if the branch still exists or a recent merge request has not been created (Stan Hu)
   - Remove satellites
@@ -16,6 +15,7 @@ v 8.0.0 (unreleased)
 
 v 7.14.1 (unreleased)
   - Only include base URL in OmniAuth full_host parameter (Stan Hu)
+  - Fix Error 500 in API when accessing a group that has an avatar (Stan Hu)
 
 v 7.14.0
   - Fix bug where non-project members of the target project could set labels on new merge requests.