fixed: imgcrop winix function should load only images

(when called in a directory)
added: to reload winix function:
       reloading (clearing) the cache from 'menu' plugin
added: to 'menu' plugin
       possibility to read 'meta' information from files 
       third argument 'withmeta' to menu_dir_tab ezc function
       e.g. [for menu_dir_tab "/directory" "..." "withmeta"]...[end]
       and some ezc functions to retrieve the meta values




git-svn-id: svn://ttmath.org/publicrep/winix/trunk@921 e52654a7-88a9-db11-a3e9-0013d4bc506e

plugins/menu/cache.h

@@ -2,7 +2,7 @@
  * This file is a part of Winix
  * and is not publicly distributed
  * 
- * Copyright (c) 2012, Tomasz Sowa
+ * Copyright (c) 2012-2013, Tomasz Sowa
  * All rights reserved.
  * 
  */
@@ -24,11 +24,12 @@ namespace Menu
 
 struct MenuItem
 {
-	long id; // item id
+	long         id; // item id
 	std::wstring url;
 	std::wstring subject;
-	Item::Type type;
-	int file_type;
+	PT::Space    meta;
+	Item::Type   type;
+	int          file_type;
 };