Merge branch 'update_changelog' into 'master'

Update changelog

Fixes #1509

See merge request !1026

CHANGELOG

@@ -2,7 +2,6 @@ v 7.2.0
   - Explore page
   - Add project stars (Ciro Santilli)
   - Log Sidekiq arguments
-  - Fix cpu usage issue in Firefox
   - Better labels: colors, ability to rename and remove
   - Improve the way merge request collects diffs
   - Improve compare page for large diffs
@@ -12,6 +11,7 @@ v 7.2.0
   - Test gitlab-shell integration
   - Repository import timeout increased from 2 to 4 minutes allowing larger repos to be imported
   - API for labels (Robert Schilling)
+  - API: ability to set an import url when creating project for specific user
 
 v 7.1.1
   - Fix cpu usage issue in Firefox