allow ul/li/ol

lib/Formats/Mf2.php

@@ -317,6 +317,9 @@ class Mf2 {
       'h4',
       'h5',
       'h6',
+      'ul',
+      'li',
+      'ol'
     ]);
     $def = $config->getHTMLDefinition(true);
     $def->addElement(

tests/SanitizeTest.php

@@ -50,6 +50,8 @@ class SanitizeTest extends PHPUnit_Framework_TestCase {
     $this->assertContains('<h4>Four</h4>', $html, '<h4> missing');
     $this->assertContains('<h5>Five</h5>', $html, '<h5> missing');
     $this->assertContains('<h6>Six</h6>', $html, '<h6> missing');
+    $this->assertContains('<ul>', $html, '<ul> missing');
+    $this->assertContains('<li>One</li>', $html, '<li> missing');
   }
 
   public function testRemovesUnsafeTags() {

tests/data/sanitize.example/entry-with-valid-tags

@@ -25,6 +25,12 @@ for code examples and such
       <h4>Four</h4>
       <h5>Five</h5>
       <h6>Six</h6>
+
+      <ul>
+        <li>One</li>
+        <li>Two</li>
+        <li>Three</li>
+      </ul>
     </div>
   </body>
 </html>