Enable (and fix) hash functions for WASM

Author: derickr

reference/hash/book.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<book xml:id="book.hash" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
+<book xml:id="book.hash" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" annotations="interactive">
  <?phpdoc extension-membership="core" ?>
  <title>HASH Message Digest Framework</title>
  <titleabbrev>Hash</titleabbrev>

reference/hash/functions/hash-hkdf.xml

@@ -125,6 +125,11 @@
 
  <refsect1 role="examples">
   &reftitle.examples;
+  <para>
+   The example below produces a pair of separate keys, suitable for creation
+   of an encrypt-then-HMAC construct, using AES-256 and SHA-256 for encryption
+   and authentication respectively.
+  </para>
   <para>
    <example>
     <title><function>hash_hkdf</function> example</title>
@@ -143,11 +148,6 @@ var_dump($encryptionKey !== $authenticationKey); // bool(true)
 ?>
 ]]>
     </programlisting>
-    <para>
-     The above example produces a pair of separate keys, suitable for creation of an
-     encrypt-then-HMAC construct, using AES-256 and SHA-256 for encryption and
-     authentication respectively.
-    </para>
    </example>
   </para>
  </refsect1>

reference/hash/functions/hash-update-stream.xml

@@ -114,7 +114,6 @@ echo hash_final($ctx);
    <simplelist>
     <member><function>hash_init</function></member>
     <member><function>hash_update</function></member>
-    <member><function>hash_update_stream</function></member>
     <member><function>hash_final</function></member>
    </simplelist>
   </para>