Refresh all docs (#298)

Change the discovery query to fetch all discovery docs, not just the
preferred ones.
diff --git a/docs/epy/class-tree.html b/docs/epy/class-tree.html
index ae26e2a..24a9040 100644
--- a/docs/epy/class-tree.html
+++ b/docs/epy/class-tree.html
@@ -163,7 +163,7 @@
 <table border="0" cellpadding="0" cellspacing="0" width="100%%">
   <tr>
     <td align="left" class="footer">
-    Generated by Epydoc 3.0.1 on Fri Oct 14 11:03:08 2016
+    Generated by Epydoc 3.0.1 on Fri Oct 21 13:54:05 2016
     </td>
     <td align="right" class="footer">
       <a target="mainFrame" href="http://epydoc.sourceforge.net"