Use standard view detection in schema

adminer/schema.inc.php

@@ -17,7 +17,7 @@
 $referenced = array(); // target_table => array(table => array(left => target_column))
 $lefts = array(); // float => bool
 foreach (table_status() as $table => $table_status) {
-	if (!isset($table_status["Engine"])) { // view
+	if (is_view($table_status)) {
 		continue;
 	}
 	$pos = 0;