Add upstream plugins

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/all-in-one-event-calendar/public/admin/feeds_settings.php

@@ -0,0 +1,15 @@
+<div class="wrap">
+
+    <h2><?php echo $title; ?></h2>
+
+    <div id="poststuff">
+
+            <div class="metabox-holder">
+                <div class="post-box-container ai1ec-feeds-page left-side timely">
+                    <?php do_meta_boxes( $settings_page, 'left', null ); ?>
+                </div>
+            </div>
+
+    </div><!-- #poststuff -->
+
+</div><!-- .wrap -->