Add upstream plugins

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

wp-content/plugins/all-in-one-event-calendar/public/admin/twig/notification/admin.twig

@@ -0,0 +1,15 @@
+<div class="message {{class}} ai1ec-message">
+	{% if label is not defined %}
+    {% set label = text_label %}
+	{% endif %}
+	<p><strong>{{ label }}:</strong></p>
+	{{ message | raw }}
+
+	{% if persistent %}
+		<button class="button button-primary ai1ec-dismissable"
+			data-key="{{ msg_key }}">
+			{{ text_dismiss_button }}
+		</button>
+	{% endif %}
+	<p></p>
+</div>