bug(security): fix XSS exploit in devel and responsive templates Replace all occurances of: tal:content="structure context/MUMBLE/plain" with tal:content="context/MUMBLE/plain" This seems to have been an old way to handle display of a field when the user did not have edit rights. It does not occur in current (later than 2009) classic tracker templates. But probably was unsed in earlier classic templates since devel, reponsive and the roundup issue tracker templates were based on classic. Add CVE placeholder to security.txt and link to fix directions added to upgrading.txt. Add note in announcement.txt and CHANGES.txt Add a details element around the table of contents in the upgrading guide. It was getting long. Updated a missed XSS issue in the roundup tracker template. Live site is already fixed. XSS bug reported by 4bug of ChaMd5 Security Team H1 Group

<!-- dollarId: issue.index,v 1.2 2001/07/29 04:07:37 richard Exp dollar-->

<tal:block metal:use-macro="templates/page/macros/icing">

<title metal:fill-slot="head_title" i18n:translate="" >
 About this Tracker
</title>
<tal:block metal:fill-slot="body_title" i18n:translate="">
  About this Tracker
</tal:block>

<div class="content" metal:fill-slot="content">

 <span tal:condition="not:python:request.user.hasRole('Admin')"
	tal:omit-tag="python:1" i18n:translate="">
    Please login with your username and password to find out about
    this tracker.
  </span>

  <div tal:condition="python:request.user.hasRole('Admin')"
       tal:omit-tag="python:1" i18n:translate="">
    <div tal:replace="structure python:utils.AboutPage(db)"></div>
  </div>
</div>

</tal:block>