Fix jinja2 undefined error

wowfunding/templates/proposal/macros/table.html

@@ -5,7 +5,7 @@
             <th style="font-size: x-large;">{{title}}</th>
             <th>Username</th>
             <th id="date">Date</th>
-            {% if status >= 2 %}
+            {% if _proposals and _proposals[0].status >= 2 %}
             <th style="text-align: right;">Funding</th>
             {% else %}
             <th></th>