ZF-2832: Make Dojo AutoComplete work with dojo ComboBox

Description

Currently, Zend_Controller_Action_Helper_AutoCompleteDojo works with a third party dojo widget instead of the standard dojo.data-backed elements such as ComboBox and FilteringSelect.

dojo.data requires an 'items' object in the response payload in order to parse it, as well as an 'identifier' object indicating which item key indicates the value to be used on submission.

This should also be documented.

Comments

Updated in trunk and 1.5 release branch; updated documentation with full examples.