When reviewing a project in preview_project.html, it is now clear if …

…there are older versions of that project. A message is displayed when the project is a new version, and the reviewer can click on a link to view the latest published version. Closed #2282#.

physionet-django/project/templates/project/project_preview.html

@@ -89,6 +89,9 @@ <h1 class="form-signin-heading"><em>[Preview]:</em> {{ project.title }}
   {% else %}
     <a style="color:red"><strong>* Required field missing</strong></a>
   {% endif %}
+  {% if project.has_other_versions %}
+    <a style="color:blue"><strong>This is a new version. <a href="{% url 'published_projects_latest' project_slug %}"> See latest version </a>
+  {% endif %}
   </p>
   <hr>