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

functions/imgcrop.cpp

@@ -33,8 +33,12 @@ bool ImgCrop::HasAccess()
 
 void ImgCrop::GetDirContent()
 {
+	iq.sel_type    = Item::file;
 	iq.sel_content = false;
+
 	iq.WhereParentId(cur->request->dir_tab.back()->id);
+	iq.WhereFileType(WINIX_ITEM_FILETYPE_IMAGE);
+
 	db->GetItems(cur->request->item_tab, iq);
 	system->CheckWriteAccessToItems(cur->request->item_tab);
 }