ZF-10155: Support for atom tag icon
I'm using Zend_Feed_Writer and I noticed that it is not possible to generate an Atom tag icon. I decided to study the code and implement this tag. I'm attaching the patch I create. Not sure if this is useful for the component and not sure if I implemented this functionality in a good way since this is my first contact with Zend_Framework.
If it is useful but the code is not code I'm willing to improved based on the feedback of other developers.