some ezc functions from templates/item.cpp moved to Item and ItemContent

methods HasAccess() HasReadAccess() and similar moved from System to Item and ItemContent

winixd/core/dirs.cpp

@@ -456,9 +456,20 @@ Item * Dirs::GetDir(long id)
 	DirContainer::Iterator i = dir_tab.FindId(id);	
 
 	if( i == dir_tab.End() )
-		return 0;
+		return nullptr;
 		
-return &(*i);
+	return &(*i);
+}
+
+
+const Item * Dirs::GetDir(long id) const
+{
+	DirContainer::ConstIterator i = dir_tab.FindId(id);
+
+	if( i == dir_tab.End() )
+		return nullptr;
+
+	return &(*i);
 }