ZF-2892: Detach Zend_Feed from Zend_Loader
All ZF components should be loosely coupled and be able to be used alone without other components if possible.
Zend_Feed_Builder_Header for example:
A simple require_once would be faster and would decouple it from Zend_Loader.
There are a few other places in Zend_Feed where this should also be decoupled.
Zend_Feed (line 380) Zend_Feed_Builder_Header_Itunes (line 115) Zend_Feed_Builder_Header (lines 178, 249, 272)