Implement remaining activity types

Signed-off-by: Julius Härtl <jus@bitgrid.net>

appinfo/app.php

@@ -21,6 +21,12 @@
  *
  */
 
+if ((@include_once __DIR__ . '/../vendor/autoload.php')===false) {
+	throw new Exception('Cannot include autoload. Did you run install dependencies using composer?');
+}
+
 $app = new \OCA\Deck\AppInfo\Application();
 $app->registerNavigationEntry();
-$app->registerNotifications();
+$app->registerNotifications();
+
+\OC_Util::addStyle('deck', 'activity');