Add more addons

Change-Id: I6de2a0372e968dd0af773d9532d0ce4ab85774da
diff --git a/gr-editor/gr-editor.html b/gr-editor/gr-editor.html
index cc44862..6a2cfbb 100644
--- a/gr-editor/gr-editor.html
+++ b/gr-editor/gr-editor.html
@@ -19,13 +19,9 @@
 <script src="../bower_components/codemirror-minified/lib/codemirror.js"></script>
 <script src="../bower_components/codemirror-minified/addon/edit/closebrackets.js"></script>
 <script src="../bower_components/codemirror-minified/addon/edit/closetag.js"></script>
+<script src="../bower_components/codemirror-minified/addon/edit/matchbrackets.js"></script>
 <script src="../bower_components/codemirror-minified/addon/edit/matchtags.js"></script>
 <script src="../bower_components/codemirror-minified/addon/edit/trailingspace.js"></script>
-<script src="../bower_components/codemirror-minified/addon/fold/foldcode.js" ></script>
-<script src="../bower_components/codemirror-minified/addon/fold/foldgutter.js" ></script>
-<script src="../bower_components/codemirror-minified/addon/fold/brace-fold.js" ></script>
-<script src="../bower_components/codemirror-minified/addon/fold/xml-fold.js" ></script>
-<script src="../bower_components/codemirror-minified/addon/fold/markdown-fold.js" ></script>
 <script src="../bower_components/codemirror-minified/addon/mode/simple.js"></script>
 <script src="../bower_components/codemirror-minified/mode/meta.js"></script>
 <script src="../bower_components/codemirror-minified/mode/clike/clike.js" ></script>