Upgrade libxml2 to e1bcffea180d6cc0651757bb64284a763e0e2239

Test: make
Change-Id: I59cf6898af49ff82070ddb18c15c217179172799
diff --git a/doc/html/libxml-xmlIO.html b/doc/html/libxml-xmlIO.html
index a3118df..f3e5753 100644
--- a/doc/html/libxml-xmlIO.html
+++ b/doc/html/libxml-xmlIO.html
@@ -79,6 +79,7 @@
 <pre class="programlisting">int	<a href="#xmlParserInputBufferPush">xmlParserInputBufferPush</a>	(<a href="libxml-tree.html#xmlParserInputBufferPtr">xmlParserInputBufferPtr</a> in, <br />					 int len, <br />					 const char * buf)</pre>
 <pre class="programlisting">int	<a href="#xmlParserInputBufferRead">xmlParserInputBufferRead</a>	(<a href="libxml-tree.html#xmlParserInputBufferPtr">xmlParserInputBufferPtr</a> in, <br />					 int len)</pre>
 <pre class="programlisting">int	<a href="#xmlPopInputCallbacks">xmlPopInputCallbacks</a>		(void)</pre>
+<pre class="programlisting">int	<a href="#xmlPopOutputCallbacks">xmlPopOutputCallbacks</a>		(void)</pre>
 <pre class="programlisting">void	<a href="#xmlRegisterDefaultInputCallbacks">xmlRegisterDefaultInputCallbacks</a>	(void)</pre>
 <pre class="programlisting">void	<a href="#xmlRegisterDefaultOutputCallbacks">xmlRegisterDefaultOutputCallbacks</a>	(void)</pre>
 <pre class="programlisting">void	<a href="#xmlRegisterHTTPPostCallbacks">xmlRegisterHTTPPostCallbacks</a>	(void)</pre>
@@ -199,7 +200,9 @@
 </pre><p>Refresh the content of the input buffer, the old data are considered consumed This routine handle the I18N transcoding to internal UTF-8</p>
 <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>in</tt></i>:</span></td><td>a buffered parser input</td></tr><tr><td><span class="term"><i><tt>len</tt></i>:</span></td><td>indicative value of the amount of chars to read</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of chars read and stored in the buffer, or -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlPopInputCallbacks" id="xmlPopInputCallbacks"></a>Function: xmlPopInputCallbacks</h3><pre class="programlisting">int	xmlPopInputCallbacks		(void)<br />
 </pre><p>Clear the top input callback from the input stack. this includes the compiled-in I/O.</p>
-<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of input callback registered or -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlRegisterDefaultInputCallbacks" id="xmlRegisterDefaultInputCallbacks"></a>Function: xmlRegisterDefaultInputCallbacks</h3><pre class="programlisting">void	xmlRegisterDefaultInputCallbacks	(void)<br />
+<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of input callback registered or -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlPopOutputCallbacks" id="xmlPopOutputCallbacks"></a>Function: xmlPopOutputCallbacks</h3><pre class="programlisting">int	xmlPopOutputCallbacks		(void)<br />
+</pre><p>Remove the top output callbacks from the output stack. This includes the compiled-in I/O.</p>
+<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of output callback registered or -1 in case of error.</td></tr></tbody></table></div><h3><a name="xmlRegisterDefaultInputCallbacks" id="xmlRegisterDefaultInputCallbacks"></a>Function: xmlRegisterDefaultInputCallbacks</h3><pre class="programlisting">void	xmlRegisterDefaultInputCallbacks	(void)<br />
 </pre><p>Registers the default compiled-in I/O handlers.</p>
 <h3><a name="xmlRegisterDefaultOutputCallbacks" id="xmlRegisterDefaultOutputCallbacks"></a>Function: xmlRegisterDefaultOutputCallbacks</h3><pre class="programlisting">void	xmlRegisterDefaultOutputCallbacks	(void)<br />
 </pre><p>Registers the default compiled-in I/O handlers.</p>