changed: winix 'upload' function is a file manager now

we're using an jquery upload plugin
added:   Item struct has new rows: hash, hash_type, file_size, sort_index
added:   css mount parameter
         you can specify css files there, and javascript wysiwyg editors
         (ckeditor, tinymce) can make use of it
changed: post parsers can parse post variables with the same name
         (a postfix is added in such a case)
added:   common_dir parameter to the config
         this is a path to common directory (directory with common static files)
         it is needed to the 'css' mount parameter
         


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@746 e52654a7-88a9-db11-a3e9-0013d4bc506e

db/dbitemquery.h

@@ -2,7 +2,7 @@
  * This file is a part of Winix
  * and is not publicly distributed
  * 
- * Copyright (c) 2010, Tomasz Sowa
+ * Copyright (c) 2010-2011, Tomasz Sowa
  * All rights reserved.
  * 
  */
@@ -30,8 +30,9 @@ struct DbItemQuery
 	bool sel_url;			// url
 	bool sel_type;			// type (dir, file, none)
 	bool sel_link;			// link_to, link_redirect
-	bool sel_file;			// file_path, file_fs, file_type, has_thumb
+	bool sel_file;			// file_path, file_fs, file_type, has_thumb, hash, hash_type, file_size
 	bool sel_html_template;	// template
+	bool sel_sort_index;    // sort_index
 
 	bool where_id;			//
 	bool where_parent_id;	//