Add upstream plugins

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

wp-content/plugins/all-in-one-event-calendar/lib/command/check-updates.php

@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * The concrete command that compiles CSS.
+ *
+ * @author     Time.ly Network Inc.
+ * @since      2.3
+ *
+ * @package    AI1EC
+ * @subpackage AI1EC.Command
+ */
+class Ai1ec_Command_Check_Updates extends Ai1ec_Command {
+
+    /*
+     * (non-PHPdoc) @see Ai1ec_Command::is_this_to_execute()
+     */
+    public function is_this_to_execute() {
+        return isset( $_GET['ai1ec_force_updates'] );
+    }
+
+    /* (non-PHPdoc)
+     * @see Ai1ec_Command::set_render_strategy()
+    */
+    public function set_render_strategy( Ai1ec_Request_Parser $request ) {
+        $this->_render_strategy = $this->_registry->get(
+            'http.response.render.strategy.redirect'
+        );
+    }
+
+    /* (non-PHPdoc)
+     * @see Ai1ec_Command::do_execute()
+    */
+    public function do_execute() {
+        $this->_registry->get( 'calendar.updates' )->clear_transients();
+
+        return array (
+            'url'        => ai1ec_admin_url( 'plugins.php' ),
+            'query_args' => array ()
+        );
+    }
+}