Pass App class instace to all templates via "$APP" variable

include/friendica_smarty.php

@@ -60,6 +60,8 @@ class FriendicaSmartyEngine implements ITemplateEngine {
 			$template = $s;
 			$s = new FriendicaSmarty();
 		}
+		
+		$r['$APP'] = get_app();
 
 		// "middleware": inject variables into templates
 		$arr = array(

include/text.php

@@ -22,7 +22,7 @@ function replace_macros($s,$r) {
 	$a = get_app();
 
 	// pass $baseurl to all templates
-	$r['$baseurl'] = z_root();
+	$r['$baseurl'] = $a->get_baseurl();
 
 
 	$t = $a->template_engine();