codemirror: enable matchtag addon

https://codemirror.net/demo/matchtags.html

makes editions of web pages and xml easier

/reviewed-on nexedi/erp5!634

bt5/erp5_code_mirror/SkinTemplateItem/portal_skins/erp5_code_mirror/code_mirror_support.txt

@@ -56,6 +56,8 @@
 <script type="text/javascript" src="&dtml-portal_url;/csslint.js"></script>
 <script type="text/javascript" src="&dtml-portal_url;/codemirror/addon/lint/css-lint.js"></script>
 <dtml-elif expr="mode == 'htmlmixed'">
+<script type="text/javascript" src="&dtml-portal_url;/codemirror/addon/fold/xml-fold.js"></script>
+<script type="text/javascript" src="&dtml-portal_url;/codemirror/addon/cm_edit/matchtags.js"></script>
 <script type="text/javascript" src="&dtml-portal_url;/codemirror/mode/xml/xml.js"></script>
 <script type="text/javascript" src="&dtml-portal_url;/codemirror/mode/javascript/javascript.js"></script>
 <script type="text/javascript" src="&dtml-portal_url;/codemirror/mode/css/css.js"></script>
@@ -522,6 +524,7 @@
     tabSize: 2,
     indentWithTabs: false,
     matchBrackets: true,
+    matchTags: {bothTags: true},
     extraKeys: extra_keys,
     foldGutter: true,
     lineWrapping: true,

bt5/erp5_code_mirror/SkinTemplateItem/portal_skins/erp5_code_mirror/codemirror.gadget.appcache.appcache

@@ -7,6 +7,7 @@ rsvp.js
 codemirror/lib/codemirror.js
 codemirror/lib/codemirror.css
 codemirror/addon/cm_edit/matchbrackets.js
+codemirror/addon/cm_edit/matchtags.js
 codemirror/addon/cm_edit/trailingspace.js
 codemirror/addon/dialog/dialog.css
 codemirror/addon/dialog/dialog.js
@@ -25,6 +26,7 @@ codemirror/addon/fold/foldcode.js
 codemirror/addon/fold/foldgutter.js
 codemirror/addon/fold/indent-fold.js
 codemirror/addon/fold/comment-fold.js
+codemirror/addon/fold/xml-fold.js
 codemirror/addon/merge/merge.css
 diff_match_patch/javascript/diff_match_patch_uncompressed.js
 codemirror/addon/merge/merge.js

bt5/erp5_code_mirror/SkinTemplateItem/portal_skins/erp5_code_mirror/codemirror.gadget.html.html

@@ -49,6 +49,8 @@
     <script src="codemirror/addon/fold/foldgutter.js"></script>
     <script src="codemirror/addon/fold/indent-fold.js"></script>
     <script src="codemirror/addon/fold/comment-fold.js"></script>
+    <script src="codemirror/addon/fold/xml-fold.js"></script>
+    <script src="codemirror/addon/cm_edit/matchtags.js"></script>
 
     <!-- Merge -->
     <link rel="stylesheet" href="codemirror/addon/merge/merge.css" />

bt5/erp5_code_mirror/SkinTemplateItem/portal_skins/erp5_code_mirror/codemirror.gadget.js.js

@@ -28,6 +28,7 @@
           tabSize: 2,
           indentWithTabs: false,
           matchBrackets: true,
+          matchTags: {bothTags: true},
           rulers: [{
             column: 80,
             color: "#bbb",