Merge pull request json-schema-org#44 from awwright/draft-05-update

Update references to latest draft

Author: Relequestual

documentation.html

@@ -22,7 +22,7 @@ <h2>Specification</h2>
         </tr>
     </table>
 
-    <p>They are also available on the IETF main site: <a href="http://tools.ietf.org/html/draft-zyp-json-schema-04">core</a>,  <a href="http://tools.ietf.org/html/draft-fge-json-schema-validation-00">validation</a> and <a href="http://tools.ietf.org/html/draft-luff-json-hyper-schema-00">hyper-schema</a>.
+    <p>They are also available on the IETF main site: <a href="http://tools.ietf.org/html/draft-wright-json-schema-00">core</a>,  <a href="http://tools.ietf.org/html/draft-wright-json-schema-validation-00">validation</a> and <a href="http://tools.ietf.org/html/draft-wright-json-schema-hyperschema-00">hyper-schema</a>.
 </div>
 
 <h2>Meta-schemas</h2>