incref the X509Req when returning an X509Name from get_subject which refers to it; this prevents a segfault if the X509Name outlives the X509Req; update docs to reflect this and to reflect previous similar changes which were apparently made to X509.get_subject and X509.get_issuer
diff --git a/doc/html/openssl-509ext.html b/doc/html/openssl-509ext.html
index c5a8a3b..cf800bd 100644
--- a/doc/html/openssl-509ext.html
+++ b/doc/html/openssl-509ext.html
@@ -47,14 +47,16 @@
 <BR>
 3.1.8 X509Extension objects 
 </H3>
+
 <P>
-<EM><EM><EM>X509Extension objects currently only have one method:
-</EM></EM></EM>
+X509Extension objects currently only have one method:
+
 <P>
 <dl><dt><b><a name='l2h-75'><tt class='method'>get_critical</tt></a></b>()
 <dd>
 Return the critical field of the extension object.
 </dl>
+
 <P>
 
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