Convert npoacct fundraiser to use dynamic content

If this new model works, we should be able to update the fundraiser
amounts in the Django database instead of the HTML.

www/conservancy/static/npoacct/index.html

@@ -134,8 +134,8 @@ el.attachEvent('on'+ev, function() {handler.apply(el);});
 */
 </script>
 -->
-$66,275 raised toward<br/>
-our $75,000 goal.<br/>
+{% fundgoal.fundraiser_so_far_amount %} raised toward<br/>
+our {% fundgoal.fundraiser_goal_amount %} goal.<br/>
 <div id="progressbar"><span style="float:right; align:center; margin-right:40%">88.4%</span></div>
 <p style="font-size: 75%">(Progress bar updated monthly.)</p>
 <a id="donate" style="text-decoration:none"></a>