Add upstream plugins

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

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

@@ -0,0 +1,27 @@
+<div class="wrap">
+
+    <h2><?php echo $title; ?></h2>
+
+    <div id="poststuff">
+
+        <form method="post" action="" enctype="multipart/form-data">
+            <?php wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false ); ?>
+            <?php wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false ); ?>
+
+            <div class="metabox-holder">
+                <div class="post-box-container column-1-ai1ec left-side timely">
+                    <?php do_meta_boxes( $settings_page, 'left', null ); ?>
+                    <?php
+                        // Show the submit button only in the settings page and not in the Feeds page.
+                        if ( $calendar_settings ) {
+                            submit_button( esc_attr__( 'Update Settings', AI1EC_PLUGIN_NAME ), 'primary', 'ai1ec_save_settings' );
+                        }
+                    ?>
+                </div>
+                <div class="post-box-container column-2-ai1ec right-side timely"><?php do_meta_boxes( $settings_page, 'right', null ); ?></div>
+            </div>
+        </form>
+
+    </div><!-- #poststuff -->
+
+</div><!-- .wrap -->