upgrading to ACE 1.6.1

Author: robertpatrick

webui/.extra-packages.json

@@ -2,7 +2,7 @@
     "runtime": {
         "ace": {
             "lines": [
-                "Ace (Ajax.org Cloud9 Editor) 1.4.14",
+                "Ace (Ajax.org Cloud9 Editor) 1.6.1",
                 "",
                 "Copyright (c) 2010, Ajax.org B.V.",
                 "All rights reserved.",