Create a module setting for the number of random images to show in the

sidebar. Fixes #1499.

modules/image_block/views/image_block_block.html.php

@@ -1,6 +1,8 @@
 <?php defined("SYSPATH") or die("No direct script access.") ?>
+<? foreach ($items as $item): ?>
 <div class="g-image-block">
   <a href="<?= $item->url() ?>">
    <?= $item->thumb_img(array("class" => "g-thumbnail")) ?>
   </a>
 </div>
+<? endforeach ?>