Added v7.4.4 and .5 to the CHANGELOG

CHANGELOG

@@ -494,6 +494,12 @@ v 7.5.0
   - Fix raw view for public snippets
   - Use secret token with GitLab internal API.
   - Add missing timestamps to 'members' table
+  
+v 7.4.5
+  - Bump gitlab_git to 7.0.0.rc12 (includes Rugged 0.21.2)
+  
+v 7.4.4
+  - No changes
 
 v 7.4.3
   - Fix raw snippets view
@@ -1451,4 +1457,4 @@ v 0.8.0
   - stability
   - security fixes
   - increased test coverage
-  - email notification
+  - email notification
\ No newline at end of file