Update CHANGELOG-EE.md for 9.0.3-ee

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CHANGELOG-EE.md

 Please view this file on the master branch, on stable branches it's out of date.
 
+## 9.0.3 (2017-04-05)
+
+- Allow to edit pipelines quota for user.
+- Fixed label resetting when sorting by weight. (James Clark)
+- Fixed issue boards milestone toggle text not updating when filtering.
+- Fixed mirror user dropdown not displaying.
+
 ## 9.0.2 (2017-03-29)
 
 - No changes.

changelogs/unreleased-ee/allow-to-edit-pipelines-quota-for-user.yml

----
-title: Allow to edit pipelines quota for user
-merge_request:
-author:

changelogs/unreleased-ee/ee-fix-sort-weight.yml

----
-title: Fixed label resetting when sorting by weight
-merge_request:
-author: James Clark

changelogs/unreleased-ee/mirror-user-dropdown-fix.yml

----
-title: Fixed mirror user dropdown not displaying
-merge_request:
-author: