struct Item has modification_user_id (long) now

this is the id of a user who has modified the item recently
this is only for information, persmissions don't use it


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@614 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/item.h

@@ -25,6 +25,8 @@ long user_id;
 long group_id;
 std::string guest_name; // used as a user name when user_id is equal -1
 
+long modification_user_id; // who has modified the item last (not taken into account when checking permissions)
+
 int privileges;
 
 tm date_creation;
@@ -109,7 +111,8 @@ void Clear()
 	user_id = -1;
 	group_id = -1;
 	privileges = 0;
-	
+	modification_user_id = -1;
+
 	guest_name.clear();
 	
 	subject.clear();