Update git submodules

* Update plugins/codemirror-editor from branch 'stable-3.9'
  to ce9838b8795338877f74c7f3b61c7c4526a279e6
  - Fix xml mode
    
    Change-Id: Ib419a2fadea2eb321559269b8e23ed14c0c20f3b
    (cherry picked from commit 06719abee6c38d17008599f074050db5153bffa3)
    
  - Add missing javascript language support
    
    Whoops!
    
    Change-Id: I56a493db26eb785769cc0cb3058a566f5fc4c9f6
    (cherry picked from commit 469f617ed3102be445615396f3047e7ba498d261)
    
diff --git a/plugins/codemirror-editor b/plugins/codemirror-editor
index d4f9247..ce9838b 160000
--- a/plugins/codemirror-editor
+++ b/plugins/codemirror-editor
@@ -1 +1 @@
-Subproject commit d4f9247d3efb6a0e461af701986235511d05b7e3
+Subproject commit ce9838b8795338877f74c7f3b61c7c4526a279e6