Update docs to not use UML diagrams. Fixes issue #148.
diff --git a/docs/epy/oauth2client.client.SignedJwtAssertionCredentials-class.html b/docs/epy/oauth2client.client.SignedJwtAssertionCredentials-class.html
index 910ad08..8156863 100644
--- a/docs/epy/oauth2client.client.SignedJwtAssertionCredentials-class.html
+++ b/docs/epy/oauth2client.client.SignedJwtAssertionCredentials-class.html
@@ -55,26 +55,13 @@
 <!-- ==================== CLASS DESCRIPTION ==================== -->
 <h1 class="epydoc">Class SignedJwtAssertionCredentials</h1><p class="nomargin-top"><span class="codelink"><a href="oauth2client.client-pysrc.html#SignedJwtAssertionCredentials">source&nbsp;code</a></span></p>
 <center>
-<center>  <map id="uml_class_diagram_for_oauth2cl_21" name="uml_class_diagram_for_oauth2cl_21">
-<area shape="rect" href="oauth2client.client.SignedJwtAssertionCredentials-class.html#MAX_TOKEN_LIFETIME_SECS" title="oauth2client.client.SignedJwtAssertionCredentials.MAX_TOKEN_LIFETIME_SECS" alt="" coords="17,377,1057,396"/>
-<area shape="rect" href="oauth2client.client.SignedJwtAssertionCredentials-class.html#__init__" title="Constructor for SignedJwtAssertionCredentials." alt="" coords="17,399,1057,417"/>
-<area shape="rect" href="oauth2client.client.SignedJwtAssertionCredentials-class.html#from_json" title="Instantiate a Credentials object from a JSON description of it." alt="" coords="17,417,1057,436"/>
-<area shape="rect" href="oauth2client.client.SignedJwtAssertionCredentials-class.html" title="Credentials object used for OAuth 2.0 Signed JWT assertion grants." alt="" coords="16,360,1059,437"/>
-<area shape="rect" href="oauth2client.client.AssertionCredentials-class.html" title="Abstract Credentials object used for OAuth 2.0 assertion grants." alt="" coords="476,299,599,331"/>
-<area shape="rect" href="oauth2client.client.Credentials-class.html#NON_SERIALIZED_MEMBERS" title="oauth2client.client.Credentials.NON_SERIALIZED_MEMBERS" alt="" coords="443,28,632,47"/>
-<area shape="rect" href="oauth2client.client.Credentials-class.html#new_from_json" title="Utility class method to instantiate a Credentials subclass from a JSON representation produced by to_json()." alt="" coords="443,49,632,68"/>
-<area shape="rect" href="oauth2client.client.Credentials-class.html" title="Base class for all Credentials objects." alt="" coords="441,11,633,69"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html#access_token_expired" title="True if the credential is expired or invalid." alt="" coords="464,116,611,135"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html#authorize" title="Authorize an httplib2.Http instance with these credentials." alt="" coords="464,137,611,156"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html#refresh" title="Forces a refresh of the access_token." alt="" coords="464,156,611,175"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html#apply" title="Add the authorization to the headers." alt="" coords="464,175,611,193"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html#to_json" title="Creating a JSON representation of an instance of Credentials." alt="" coords="464,193,611,212"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html#set_store" title="Set the Storage for the credential." alt="" coords="464,212,611,231"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html#__getstate__" title="Trim the state down to something that can be pickled." alt="" coords="464,231,611,249"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html#__setstate__" title="Reconstitute the state of the object from being pickled." alt="" coords="464,249,611,268"/>
-<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html" title="Credentials object for OAuth 2.0." alt="" coords="463,99,612,269"/>
+<center>  <map id="class_hierarchy_for_signedjwta" name="class_hierarchy_for_signedjwta">
+<area shape="rect" href="oauth2client.client.AssertionCredentials-class.html" title="AssertionCredentials" alt="" coords="35,117,176,144"/>
+<area shape="rect" href="oauth2client.client.SignedJwtAssertionCredentials-class.html" title="SignedJwtAssertionCredentials" alt="" coords="5,173,205,200"/>
+<area shape="rect" href="oauth2client.client.Credentials-class.html" title="Credentials" alt="" coords="63,5,148,32"/>
+<area shape="rect" href="oauth2client.client.OAuth2Credentials-class.html" title="OAuth2Credentials" alt="" coords="40,61,171,88"/>
 </map>
-  <img src="uml_class_diagram_for_oauth2cl_21.gif" alt='' usemap="#uml_class_diagram_for_oauth2cl_21" ismap="ismap" class="graph-without-title" />
+  <img src="class_hierarchy_for_signedjwta.gif" alt='' usemap="#class_hierarchy_for_signedjwta" ismap="ismap" class="graph-without-title" />
 </center>
 </center>
 <hr />
@@ -435,7 +422,7 @@
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-    Generated by Epydoc 3.0.1 on Thu Jun 14 08:01:57 2012
+    Generated by Epydoc 3.0.1 on Fri Jun 15 09:51:51 2012
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