- added to FunctionBase: bool register_default_models (default true)

if true then winix will add default models for ezc templates such as "request", "item", etc.
- some methods from templates/item.cpp moved to Item

winixd/functions/functionbase.cpp

@@ -47,6 +47,7 @@ FunctionBase::FunctionBase()
 	template_index  = size_t(-1);
 	need_ssl		= false;
 	need_session	= true;
+	register_default_models = true;
 
 	fun.item_content.user_id    = -1;
 	fun.item_content.group_id   = -1;