Refresh all docs (#298)

Change the discovery query to fetch all discovery docs, not just the
preferred ones.
diff --git a/docs/epy/googleapiclient.http.HttpRequest-class.html b/docs/epy/googleapiclient.http.HttpRequest-class.html
index bea118c..852f863 100644
--- a/docs/epy/googleapiclient.http.HttpRequest-class.html
+++ b/docs/epy/googleapiclient.http.HttpRequest-class.html
@@ -59,13 +59,13 @@
 <h1 class="epydoc">Class HttpRequest</h1><p class="nomargin-top"><span class="codelink"><a href="googleapiclient.http-pysrc.html#HttpRequest">source&nbsp;code</a></span></p>
 <center>
 <center>  <map id="uml_class_diagram_for_googleap_27" name="uml_class_diagram_for_googleap_27">
-<area shape="rect" id="node1_6" href="googleapiclient.http.HttpRequest-class.html#__init__" title="Constructor for an HttpRequest." alt="" coords="17,36,684,55"/>
-<area shape="rect" id="node1_7" href="googleapiclient.http.HttpRequest-class.html#execute" title="Execute the request." alt="" coords="17,55,684,73"/>
-<area shape="rect" id="node1_8" href="googleapiclient.http.HttpRequest-class.html#add_response_callback" title="add_response_headers_callback" alt="" coords="17,73,684,92"/>
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-<area shape="rect" id="node1_10" href="googleapiclient.http.HttpRequest-class.html#to_json" title="Returns a JSON representation of the HttpRequest." alt="" coords="17,111,684,129"/>
-<area shape="rect" id="node1_11" href="googleapiclient.http.HttpRequest-class.html#from_json" title="Returns an HttpRequest populated with info from a JSON object." alt="" coords="17,129,684,148"/>
-<area shape="rect" id="node1" href="googleapiclient.http.HttpRequest-class.html" title="Encapsulates a single HTTP request." alt="" coords="5,5,696,155"/>
+<area shape="rect" id="node1_6" href="googleapiclient.http.HttpRequest-class.html#__init__" title="Constructor for an HttpRequest." alt="" coords="17,39,677,59"/>
+<area shape="rect" id="node1_7" href="googleapiclient.http.HttpRequest-class.html#execute" title="Execute the request." alt="" coords="17,59,677,79"/>
+<area shape="rect" id="node1_8" href="googleapiclient.http.HttpRequest-class.html#add_response_callback" title="add_response_headers_callback" alt="" coords="17,79,677,99"/>
+<area shape="rect" id="node1_9" href="googleapiclient.http.HttpRequest-class.html#next_chunk" title="Execute the next step of a resumable upload." alt="" coords="17,99,677,119"/>
+<area shape="rect" id="node1_10" href="googleapiclient.http.HttpRequest-class.html#to_json" title="Returns a JSON representation of the HttpRequest." alt="" coords="17,119,677,139"/>
+<area shape="rect" id="node1_11" href="googleapiclient.http.HttpRequest-class.html#from_json" title="Returns an HttpRequest populated with info from a JSON object." alt="" coords="17,139,677,159"/>
+<area shape="rect" id="node1" href="googleapiclient.http.HttpRequest-class.html" title="Encapsulates a single HTTP request." alt="" coords="5,5,689,165"/>
 </map>
   <img src="uml_class_diagram_for_googleap_27.gif" alt='' usemap="#uml_class_diagram_for_googleap_27" ismap="ismap" class="graph-without-title" />
 </center>
@@ -561,7 +561,7 @@
 <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 11:03:09 2016
+    Generated by Epydoc 3.0.1 on Fri Oct 21 13:54:06 2016
     </td>
     <td align="right" class="footer">
       <a target="mainFrame" href="http://epydoc.sourceforge.net"