Add section on switch from SourceForge to GitHub to migration document

docs/html/_sources/upgrade.txt

@@ -232,3 +232,28 @@ configuration file.  For example
 will load the pre-defined ``TeX-AMS_HTML`` configuration, but will modify 
 the settings to allow ``$...$`` delimiters, and to process ``\$`` to 
 produce dollar signs within the text of the page.
+
+
+New Distribution Location
+=========================
+
+Version 1.0 of MathJax was distributed through `SourceForge`, but the
+development of MathJax has switched to `GitHub
+<https://github.com/mathjax/MathJax/>`_, which is now the primary location
+for MathJax source code and distributions.  The SourceForge repository will
+no longer be avtively maintained (and hasn't been since November 2010), and
+so you will not be able to obtain updates through ``svn`` if you checked
+out MathJax from there.
+
+You may be able to switch to using the MathJax CDN (see above) rather than 
+hosting your own copy of MathJax, and avoid the problem of updates all 
+together.  If you must install your own copy, however, you should follow 
+the instructions at :ref:`Installing and Testing MathJax <installation>`, 
+using either ``git`` or ``svn`` as described to obtain your copy from 
+GitHub.  This will allow you to keep your copy of MathJax up to date as 
+development continues.
+
+We apologize for the inconvenience of having to switch distributions, but 
+the git-to-svn bridge we tried to implement to keep both copies in synch 
+turned out to be unreliable, and so the SourceForge disrtibution was 
+retired in favor of the GitHub site.

docs/html/upgrade.html

@@ -240,6 +240,26 @@ configuration file.  For example</p>
 the settings to allow <tt class="docutils literal"><span class="pre">$...$</span></tt> delimiters, and to process <tt class="docutils literal"><span class="pre">\$</span></tt> to
 produce dollar signs within the text of the page.</p>
 </div>
+<div class="section" id="new-distribution-location">
+<h2>New Distribution Location<a class="headerlink" href="#new-distribution-location" title="Permalink to this headline">¶</a></h2>
+<p>Version 1.0 of MathJax was distributed through <cite>SourceForge</cite>, but the
+development of MathJax has switched to <a class="reference external" href="https://github.com/mathjax/MathJax/">GitHub</a>, which is now the primary location
+for MathJax source code and distributions.  The SourceForge repository will
+no longer be avtively maintained (and hasn&#8217;t been since November 2010), and
+so you will not be able to obtain updates through <tt class="docutils literal"><span class="pre">svn</span></tt> if you checked
+out MathJax from there.</p>
+<p>You may be able to switch to using the MathJax CDN (see above) rather than
+hosting your own copy of MathJax, and avoid the problem of updates all
+together.  If you must install your own copy, however, you should follow
+the instructions at <a class="reference internal" href="installation.html#installation"><em>Installing and Testing MathJax</em></a>,
+using either <tt class="docutils literal"><span class="pre">git</span></tt> or <tt class="docutils literal"><span class="pre">svn</span></tt> as described to obtain your copy from
+GitHub.  This will allow you to keep your copy of MathJax up to date as
+development continues.</p>
+<p>We apologize for the inconvenience of having to switch distributions, but
+the git-to-svn bridge we tried to implement to keep both copies in synch
+turned out to be unreliable, and so the SourceForge disrtibution was
+retired in favor of the GitHub site.</p>
+</div>
 </div>
 
 
@@ -255,6 +275,7 @@ produce dollar signs within the text of the page.</p>
 <li><a class="reference internal" href="#combined-configurations">Combined Configurations</a></li>
 <li><a class="reference internal" href="#loading-mathjax-from-the-cdn">Loading MathJax from the CDN</a></li>
 <li><a class="reference internal" href="#change-in-default-tex-delimiters">Change in default TeX delimiters</a></li>
+<li><a class="reference internal" href="#new-distribution-location">New Distribution Location</a></li>
 </ul>
 </li>
 </ul>

docs/source/upgrade.rst

@@ -232,3 +232,28 @@ configuration file.  For example
 will load the pre-defined ``TeX-AMS_HTML`` configuration, but will modify 
 the settings to allow ``$...$`` delimiters, and to process ``\$`` to 
 produce dollar signs within the text of the page.
+
+
+New Distribution Location
+=========================
+
+Version 1.0 of MathJax was distributed through `SourceForge`, but the
+development of MathJax has switched to `GitHub
+<https://github.com/mathjax/MathJax/>`_, which is now the primary location
+for MathJax source code and distributions.  The SourceForge repository will
+no longer be avtively maintained (and hasn't been since November 2010), and
+so you will not be able to obtain updates through ``svn`` if you checked
+out MathJax from there.
+
+You may be able to switch to using the MathJax CDN (see above) rather than 
+hosting your own copy of MathJax, and avoid the problem of updates all 
+together.  If you must install your own copy, however, you should follow 
+the instructions at :ref:`Installing and Testing MathJax <installation>`, 
+using either ``git`` or ``svn`` as described to obtain your copy from 
+GitHub.  This will allow you to keep your copy of MathJax up to date as 
+development continues.
+
+We apologize for the inconvenience of having to switch distributions, but 
+the git-to-svn bridge we tried to implement to keep both copies in synch 
+turned out to be unreliable, and so the SourceForge disrtibution was 
+retired in favor of the GitHub site.