merge with upstream master

helix/templates/download.html.jinja

@@ -1,6 +1,10 @@
 {% extends "layout.html.jinja" %}
 {% set title = "Helix Calculator" %}
 {% block contents %}
+    {% for warning in context['warning_messages'] %}
+        <div class="summary_warning">{{ warning.value }}</div>
+    {% endfor %}
+
     <div class="form_section">
         <h3>Download</h3>
     </div>
@@ -20,6 +24,14 @@
                 <button>Download BOM (.txt)</button>
             </a>
         </div>
+
+        {% if 'SFID' in session %}
+        <div class="download">
+            <a href="/export-sfdc">
+                <button>Export documents to Salesforce</button>
+            </a>
+        </div>
+        {% endif %}
     {% else %}
         Please complete previous steps first!
     {% endif %}